You can definatly hear the rumble in the cab when you give it gas, enough to make it more enjoyable to drive but not too loud and no drone with the dual pipes and resonators still on. i know to some this is a stupid question but i gotta ask! A perforated pipe of the same diameter as the inlet and outlet runs straight through the muffler case unimpeded, and the stainless steel wool surrounding the perforations soaks up the annoying frequencies like a sponge, turning the kinetic energy into heat, while passing the flow straight through the muffler. Here, the thing that separates the women from the girls is headers versus stock exhaust manifolds. Zero rasping. L99 vs. LS3 vs. LS7: Which Is The Best Engine For You? For a better experience, please enable JavaScript in your browser before proceeding. Both exhaust brands have been around since the early 1980s, both have the word "flow" in their names, and both brands have a huge following within the ranks of enthusiasts. Retro sound like the muscle cars of the 70s, with less resonance inside the car too. Is price also a factor? Especially when traveling at highway speeds. Not to mention, the unique delta flow baffle setup allows it to produce a low and rich, throaty tone. 28 Question: Does having a loud exhaust use more fuel? We discovered from a comprehensive dyno test of 11 low-buck mufflers on MotorTrend's Engine Masters series (season 4, episode 49) that, categorically, mufflers with a straight-through design are measurably better power-wise than mufflers with any kind of baffle (the typical Flowmaster) or turbo-style mufflers similar to the Dynomax Super Turbo that I like. It quiets an aggressive engine and is also fit for the race track. It has three-chamber Delta Flow technology that delivers minimal interior resonance, making it perfect for performance street cars and muscle engines due to the rumbling sound it generates. Moreover, its street-legal, so you can install it for your daily drive. Sep 7, 2011. Muffler sound is all about BASS. The 40 series is louder and less defined than the FlowFX because the latter has a deep exterior sound and moderate interior tone. Backpressure never builds torque, an integral element of power. Most people doesnt care much about a well-placed muffler but it can make quite a bit of difference. Get the quickest and loudest draw with the Outlaw muffler. All thanks to a laminar flow design to deliver ground-breaking sound control. This model was created after the Delta Force race mufflers and is intended for any driver looking for the loudest and most aggressive sound for off-highway use. First issue was probably the fault of the carrier, but the system arrived with the box utterly destroyed. Furthermore, the Flowmaster HP-2 carries cool shell cases that reduce drone sound significantly and insulate against heat. For the best results we HIGHLY recommend using a good set of headphones or better than built-in computer speakers. This muffler is for racing applications. Adding to the confusion, both companies have endeavored to make near-copies of each other's products (Rumble Exhaust is Magnaflow's de facto Flowmaster-style product and the FlowFX series is Flowmaster's Magnaflow-style product). Features include 409 stainless steel construction for added durability and 16-gauge 3.0-inch to 2.5-inch mandrel . cocoa beach flag warnings today; noita enable achievements with mods; victor hugo ce que dit la bouche d'ombre analyse; kate matrosova last photo; how tall is brad krasowski JavaScript is disabled. http://exhaustsoundclips.com/phpbb2/dload.php. In Engine Masters episode 49, the guys used a 408 cu-in Ford Cleveland small-block dialed down to around 600 hp, and rpm was limited to 6,500; the important thing to remember is that the engine was chosen to lean hard on each muffler's ability to flow unfettered, magnifying any flow deficiencies in the muffler design. Flowmaster's Magnaflow-copy FlowFX muffler. Their systems are build from long-lasting materials. The Super 44 muffler is an excellent choice for drivers who want a powerfully rich tone. L $35.58. Since this muffler is louder than your stock muffler, you can expect to hear the resonance inside the cabin. Loud as it is, it doesnt get as loud and growly as the Flowmaster Super 10, which is the most aggressive Flowmaster. 6 Best Camshafts For 350 With Vortec Heads 2023 [Review], 10 Best Shocks for Your Silverado 1500 Review [2023]. Yes, it does. Borla exhaust systems tend to be more expensive than Flowmaster. I have a Gibson stainless and like it a lot. Its a high-quality muffler that will keep the peace inside your ride. The 3-inch exhaust was an upgrade from the 2.5-inch exhaust that was previously on the car. Instead, the low-dollar knock-offs of each were tested. Yes, it is. Like a lot of people, I fell in love with the sound of Dynomax Super Turbo mufflers [Note: this is a personal preference, not an official position of HOT ROD], a class of muffler called a turbo muffler because its design was originally chosen by GM for turbocharged versions of the Corvair. Two timeless models. The devil lies in the details, as always. This muffler not only gives you a deep sound but also increases overall vehicle performance. Does it matter which way a muffler goes on? How did they do, and what engine did they test with? No aftermarket system will give you the best of both worlds. Flowmaster 80 Series gives you precisely that sound. At 10.5 inches long and 4-inch wide, it allows sound waves and exhaust gases to flow out easily for improved horsepower and performance. Making it extremely loud. Both 50 Series and 40 Series mufflers are excellent for street/strip and off-road applications. Ive heard some people describe them as a blast to the 70s past, with the lower-pitched, throaty growls of blazing muscle cars. Its not loud but adds a great sound to V6 and V8 engines. Flowmaster exhaust pipe systems will improve the car's power by 10 to 15 units. The best way to be safe is to check your local laws to find out whats considered illegal. Is it illegal to take off a muffler from the vehicle? They dont need to be either, though. Style: Base Product Stainless Steel Construction Includes Both Rear and Side Exit Patented Delta Flow technology Mandrel Bent See more product details Anti-drone improvement over the classic 40s. Flowmaster 40 Series produces a low deep rumble at idle that comes alive when you punch it. PRODUCT SPECIFICATIONS. This model is suitable for street rods, sport trucks, customs, and low-riders with a compact design. Aluminized steel means higher corrosion risk in extreme conditions. 2.5" Inlet / 2.5" Outlet Mufflers (44 products) MagnaFlow 4 X 9in. Yes, design-wise, they're pretty much the same classic welded muffler at a glance. Blue Seal Certified Author of auto/truck repair information. Flowmaster 40 Series Mufflers uses a two-chamber design to deliver a deep, rich tone without creating too much backpressure. Get it for your racing ride or off-road truck today. High-quality stainless steel construction, More expensive than super 10, super 44, and Outlaw mufflers, Mild internal resonance is not for everyone, Sounds rugged when revving up all the way, Limited to Dodge trucks and Hemi engines for direct fit, Tone not as low as some street drivers would like. Flowmaster 50 SERIES BIG BLOCK MUFFLERS - * FREE GROUND SHIPPING. Its difficult to replace the mechanical joints. You can't stay in the truck and the speed range seems to be +/- 7mph. And yet, you still want to know what's empirically impossible to know. Flowmaster 80 Series also features the original two-chamber design. With thicker casings and less droning, the Flowmasters will achieve a deeper rumble, a beefier growl. The answer is: both. 2 inch, 2-1/4 inch, or 2-1/2 inch inlet and outlet options available. And most important of all, is your engine making enough power for any of this to make a difference on power? The devil lies in the details, as always. Finally, if youre out for a muffler that brings character to your car without being too loud, the mild-sounding mufflers are suitable for you. are the cherry bombs louder than the glaspacks? If backpressure really added torque, the names Flowmaster and Magnaflow would instead be Chokemaster and Magnachoke. However, it's not as loud and aggressive as the 40 Series either. The mellow tone makes for a silent driving experience. In general, fewer chambers mean less backpressure and noise reduction. Hence, its ideal if you want to match your stock system or for increased ground clearance. Quite a few people make the mistake of thinking the Thrush Welded and the Flowmaster 40 muffler are the same. Flowmaster FlowFX Series is for the gentlemans muscle car. The Flowmaster Super 40 sounds deeper and meaner to give you that lovely sporty sound. Ill cover some of them, but I want to be clear: Throughout their line-ups, both Flowmaster and Thrush have peculiar and unique acoustics, each brand for itself. Flowmaster Stainless Steel American Thunder Exhaust Systems 817477 Exhaust System, American Thunder, Cat-Back, Stainless Steel, Natural, Dodge, 5.7L, Kit Part Number: FLO-817477 We recommend the Flowmaster 953047 Super 40 Muffler for a v8 engine. There is a lot that goes on inside there - the Flowmasters actually drawing spent gasses out of the engine's combustion chambers. Spintech mufflers are the baddest :evil: sounding mufflers I have ever heard. I personally also do not like glasspacks because they make a car almost sound like it's farting. SKU # 880011. You can call this model the Super 50 but with more volume, because it has a thinner case and more baffles that add resonance. If you want better engine performance and improved sound quality, consider the Flowmaster DBX Series. Somehow, none of the parts were missing or damaged except for the Flowmaster stickers. got a magnaflow si/do cat back exhaust sounds good but i wish it was louder, it turns heads all the time but i want it to sound deeper. Here comes major comparing-the-sounding. If you are looking to give your vehicle an aggressive RUMBLE, then these
Its a very affordable take on neighborhood-friendly purring. It delivers an aggressive muscle car sound inside and outside the vehicle. Whether you are an enthusiast or daily driver out for an aggressive muffler that wont leave your ears ringing, youve got in the Flowmaster 40 series. Once the coating peels off (and it does eventually), the muffler will start corroding. Whether you're a speed demon who hits the track every weekend, an adventurer who likes to rumble and tumble across rough terrain, or someone who simply wants a little extra oomph and vroom when you're cruising through the streets, Flowmaster has fine-tuned each of their exhaust systems to deliver the right acoustics and dyno-proven . Its a very aggressive and noticeable muffler. Can be installed almost on all vehicles with some minor adaptations, MIG aluminium welding on the 409 Stainless Steel provides long life, The exterior sound has a good aggressive tone, Good enough street and off-road performance, The exhaust-sounds may sometimes be louder than stock mufflers or like driving with none, The color-coating of some models boil off easily, Inlet Diameter : 2.250 inches, Inlet Quantity : Two Inlet, Location : Offset, Outlet Diameter : 2.250 inches, Outlet Quantity : Two Outlet, Internal Construction : Chambered Muffler, Material : Steel, Muffler Finish : Aluminized Case, Body Weight : 12.33 pounds, Dimension : 23.8 * 10.2 * 4.5 inches, Part Number : 17637, Brand : THRUSH, High temperature metallic finish (304 polished stainless steel), Thrush logo embossed on muffler cover for authentication, Aluminized and fully welded steel structures have made it extreme durable, Sufficiently well-built and handles the welding nicely, High temperature metallic finish and polished stainless steel, A wide range of compatibility as all universal mufflers, Superior Sound Quality : you shall get a deep throaty sound like a truck should have. Or is it? Cherry Bomb's Salute Magnaflow-copy muffler. Flowmaster 51013 - Heat Shield Kit For 40 Series Mufflers 11 in. The Heavy Duty 50 has a louder rumble inside the vehicle. Keen on going full pedal to the metal? They aren't too loud or too quiet. Today, virtually every exhaust maker offers a version of the turbo muffler, including Magnaflow's BRExhaust line and Flowmaster's sister brand Raptor. Its for a V6 and V8 application and gives you the exact sound that you want for these engines. After headers and some sort of balance pipe, the next most important thingthat's way more important than having a Flowmaster or a Magnaflow muffleris keeping the heat inside the exhaust system. They are generally inexpensive, have great flow when up-sized properly, and have a throaty burble that I like. To this end, this muffler is guaranteed to beat your stock headers in power production. In addition, it utilizes aluminized steel or 409 stainless steel for unmatched corrosion resistance. Argh!!! 50 and 70 series "Delta Flow" Flowmasters are rather quiet with little drone on the highway but are expensive. Borla vs Flowmaster Pricing With nearly no cabin resonance, it provides a comfortable yet powerful ride. Flowmaster 60 Series Delta Race provides better performance than a stock muffler, and its also pretty quiet for a muffler suitable for the race track. Like we said, both companies build knock-offs of each other's products, so the real winner between the two might be the stainless steel Flowmaster FlowFX, otherwise nearly identical to the Magnaflow, but at a price of $45.42 (each) instead of the Magnaflow's $115. The header discussion is beyond the scope of this article, but h-pipes and x-pipes certainly are not, and once again these offer gains of a higher magnitude relative to fussing over which proprietary muffler design is best. I had the non-npp stock exhaust. And not just on the road but also inside the cabin. Forums. Re: summit or jegs brand chambered mufflers. Flowmaster 953047 Super 40 Muffler Discover the excellence of using the Flowmaster 953047 Super 40 Muffler that has a deep aggressive to the moderate exhaust note. In a V-8 engine, the firing order from bank to bank does not always alternate, but repeats. Also, the Dynomax Ultra-Flo's are $10 cheaper per muffler and make a really nice rumble like old muscle cars (and the Ultra-Flo's flow at 1133cfm, the highest flow number Ive ever seen) Jan 28, 2006 #3 U ULTM8Z From the H-chamber design to the reduced under-hood temperature, youll be raving about this muffler once you install it. May start making a chirping or humming sound once it gets warmed up, The hotter it gets the louder the drone is than before unless given some break, The 4 inches outlet may become too low when attached to some vehicle models, Includes California Proposition 65 Warning, Dimension : 19.7 * 10.4* 4.9 inches, Authentication : Thrush Bird and Name logo embossed on shell cover, Four color graphic cartons for retail selling. Price Not Available. If you want the benefits of a Flowmaster with an added performance increase, youll love using the Super 50 series. The Super 40 doesn't come as a direct bolt on so you have to buy the muffler with in/out offsets. Hard as it is to believe, in the year 2021 you can still find thousands of YouTube videos, forum posts, and stories that state that you need to have a muffler with some backpressure to build torque. The muffler is ideal for high-performance street cars, RVs, SUVs, most trucks, and tow vehicles. It is simple to install, featuring large, 5" tips and produces deep, mellow, loud, not annoying tone. According to Flowmaster, the 44 is designed to be louder and definitely has more rumble to it. The Flowmaster Super 40 is a glass pack-type muffler that is one of the best-sounding mufflers out in the market. Flowmaster's lineup offers a lot of different sound profiles. Not as resonant inside your car; less droning too. So far, so good anyway. The Gen III Hemi fires four and two, and six and five consecutively, and even an LS (the engine with the least to gain from an exhaust crossover) fires cylinders two and six consecutively. The 40 Series generates interior resonance within the vehicle as well, so if you want to really hear your exhaust system inside the vehicle as well as outside it, the 40 Series is for you. Its well-rounded performance also covers a calm ride since it enjoys reduced interior resonance. I like that this muffler unleashes a subtle but warm rumble in a straight-through design. Depending on model, the Flowmaster Super 44 Series muffler is available with up to a 10-Year Warranty. 29 Question: Does it matter which way a muffler goes on? Moreover, as the camshaft's overlap of the exhaust and intake lobe increases, the greater the positive effect exhaust scavengingand a crossover pipehas (see this Engine Masters dyno test of crossovers vs. straight pipes on a mild 5.3-liter LS with a 2.5-inch exhaust and a small cam). The Flowmaster Super 44 is a durable fully welded 16ga aluminized steel muffler. Magnaflow's Flowmaster-copy Rumble muffler. Flowmaster 60 Series Delta Race is the ideal solution for race cars that want a tremendous boost in power and torque with maximum sound control. I have the flowmaster 50 series mufflers, but love the sound of the flowmaster sweet thunder mufflers. i've been looking at the Flowmaster delta force single chamber muffler. We can divide Flowmaster mufflers into three groups. Loud & Aggressive Sound W x 13 in. Plus, it has a MIG welded body to improve durability. The Flowmaster Super 40 and Super 44 mufflers are both designed to make some noise. Another thing some people dont know about is the actual loudest muffler from the raging Woodpecker. Fully welded outer case for maximum structural integrity. Flowmaster 50 Series Heavy Duty is for the most demanding applications. Flowmaster mufflers rely on reflective baffles that create destructive interference at the most annoying drone frequenciesa tactic that cuts sound output, but that leaves significant sound energy in the "raspy" upper-midrange frequencies. . Does muffler placement affect the sound of my car? The two outlets give a unique beefy muscle-car sound, Sounds of acceleration and deceleration are smooth and impressive, Authentication available with logos engraved on the muffler cover, The muffler diameter is poorly designed and needs improvement, Using little more than usual throttle may set off car alarms with this installed. I put a Hooker aero chamber on my Dodge truck last year and it had a very nice sound compared to the flowmaster (which had rotted out). However, it meets both sound and emission limits, but you still have to check local laws when you choose this unit. The Super 40 does not improve horsepower performance even while utilizing Delta Force performance technology. The Magnaflow is more exotic sounding and pretty quiet. Both Magnaflow and Flowmaster have many muffler lines (16 for Magnaflow and 26 for Flowmaster) and this has made it mathematically impossible to declare one or the other superior even if that were feasible. Magnaflow vs. Flowmaster A car's exhaust system plays a major role in controlling the hot gases exiting the motor. The muffler is perfect for high-boost and performance cars as it does not contain any internal fiberglass packaging to blow out. 24 Question: Does muffler affect the sound of my vehicle? It gives a deep, throaty rumble without being excessively noisy. Save money. Moderate aggressive exterior exhaust-sound tone, Includes hangers and hardware for easy installation, Designed by Flowmaster, boss of the mufflers market, Very easy to install : can be installed at home, Interior parts sometimes require replacement, Too Pricey as compared to all the competitors, May give a little more interior sound than some stock mufflers, Might not provide much good performance than factory or stock exhausts, The vehicles tail-pipe may not fit properly into muffler-flange tab/slot, Does not fit the trucks with single built-in tailpipes (including the 2019 new body RAM 1500 trucks), Dimension : 12.5 * 9.5 * 4 inches, Brand : TOTALFLOW, Constructed with durable 409 Stainless Steel, Fully MIG welded 16 gauge aluminized Steel, Made in USA California based manufacturer, Universal Muffler- not a direct fit. Actually, it depends on your location. Jul 10, 2020 #10 S. superram8 Junior Member. As we all know, the faster an engine is able to get rid of all of the produced exhaust gases, the more it is able to generate power, and with it comes the noise. This small but powerful package takes the distinct sound of Flowmaster's 40 Series Muffler, and packs it into a more manageable size. "Z" flow multi-core for improved flow and turbo sound. This high-flowing muffler has a patented core design with a minimal interior drone for moderate sound. Every enthusiast will want to get the rich and deep sound that will make your ride a statement. This muffler is a mild version of the Flowmaster sound, meaning it will reveal your engine, but you wont disturb your neighborhood. Remember the aluminized vs stainless steel materials I talked about earlier. The Jones Full Boar mufflers are the best bang for the buck and have excellent flow. Which one do you prefer? Flowmaster Outlaw. As you might judge by the number designation, the Super 44 is the next generation of the Flowmaster . Other tests have been done before and Magnaflow had the edge over Flowmaster because of it's simple direst straight through design. Want a lovely, deep, low rumble that is pleasing to the ears inside and out? From a flow perspective, Magnaflow mufflers are hard to beat (a straight pipe or a bullet muffler would be a good flow analog) and the Magnaflow sound is preferred by many. Not to mention, it sounds great over the entire power band and quiets down during cruising speeds. How Long to Achieve a Consistent Sound? Balanced growls. I like a deep mean rubmble that is somewhat loud without being obnoxious. Lets compare Flowmaster mufflers side by side to give you a good idea of how these mufflers sound. Flowmaster - Flowmaster has manufactured their mufflers with a chamber style design and they do not use any acoustical material. I hope you do because these mufflers are pretty distinct and deliver unique sounds. These products can be wraps like those offered by DEI and Thermotec, or a ceramic thermal barrier coating from Jet-Hot or ZyCoat. When you buy through links on the site, we may earn a commission. Required fields are marked *. There's a huge difference between Flowmaster's 40 vs Super 40. The cars wearing Flowmaster mufflers were scienced-out in the exhaust department, with all the things we mentioned earlier, like properly-sized headers, thermal barrier coatings, thermal wraps, x-pipes, and short, sewer drain-sized pipes to dump the spent gases. Get the quickest and loudest draw with the Outlaw muffler. #12256. Moreover, it borrows from the HP and Pro Series to deliver high-quality sound and maximum performance. Save my name, email, and website in this browser for the next time I comment. I've heard they give a really loud raspy drag-car sound, really close to open headers. The disadvantage is they cost more than all the others, but its worth it to have a sound that not many have. Flowmaster 80 Series gives you precisely that sound. 04-18-2011, 07:06 AM. With nearly no cabin resonance, it provides a comfortable yet powerful ride. 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - Best muffler for a deep rumble 351w - I recently bought an 84 f250 and had to redo the whole exhaust system. The 44 mufflers are loud and ideal for street cars but remain significantly quieter than Super 10 mufflers. The Super 50 series optimizes exhaust flow, increasing fuel mileage; thats why its great for trucks, SUVs, and other large displacement vehicles. Flowmaster's muffler is an excellent choice for enhanced off-road performance on a high-horsepower truck. fLOWMASTER MUFFLERS. . In the end, the difference in power on a less powerful car may be so minimal that you may just want to choose mufflers with the sound you prefer. WELDED MUFFLER Chambered to deliver that classic performance sound. MAGNA FLOW RUMBLE EXHAUST $35 MUFFLER FROM AUTOZONE REVIEW AND TEST DRIVE - YouTube 0:00 / 8:27 MAGNA FLOW RUMBLE EXHAUST $35 MUFFLER FROM AUTOZONE REVIEW AND TEST DRIVE royzcustomz. Its for enthusiasts and everyday drivers with a knack for a superior exhaust. It seems like some are saying they are very comparable, but I'm trying to figure out from reading descriptions and watching videos if one is a little louder than the other. The confusion is understandable, the stakes are high, and the brand loyalties are deep on both sides, so why hasn't a responsible third party stepped up to declare a winner? In addition, this muffler can fit both diesel and gas trucks. ADD TO CART. For its price range, Thrush is a direct competitor to the higher-priced Flowmaster when it doesnt come to Flows Super series. It may be usefull. Let's look at what's going on here. Thrush 17715 Turbo Muffler, 15 8. Flowmaster FlowFX Series is for the gentlemans muscle car. It has an aggressive sound thats deep due to the interior steel plates that form the two chambers. It takes advantage of two chambers to give you loud sound to breathe new life into your ride. Featuring Flowmasters original design, this muffler screams performance. Standard Delivery. But cruising at highway speed is very comfortable easy to talk to another person in the cab. Flowmaster 40 vs Super 40 vs 50: A Comparison, TeraFlex vs MetalCloak: Their Lift Kits & Components, TRQ Struts vs Monroe or OEM: A Comparison, Thrush mufflers vs Flowmaster: Sound performance. At higher rpm, the behavior of these events acts as one longer pulsea single slug of exhaust twice the normal size that can pile up and cause a restriction. Maximizing Performance Many newcomers doubt if mufflers can improve. It utilizes Delta Flow technology which maximizes efficiency while minimizing interior resonance. Flowmaster 953047 Super 40 Series Muffler. Finally, this model has stainless-steel plates to form a body that provides minimum sound oppression. The 10s last longer too due to their stainless steel body. Thats why you listen to a rich tone thats only associated with classic cruisers. Dyno testing has revealed a lot of snake oil and mirrors over the years and we've discovered that on any given day, either a Magnaflow or a Flowmaster muffler (or another brand of muffler) can win. My exact car is a 2019 3LT RS Camaro, V6. Tanner C who drives a Chevy Colorado says: As an Amazon Associate I earn from qualifying purchases. I am looking to add some deep rumble to my 2014 SS, I have the dual outlet per side (NPP) right now and I like the look just wanted to add some Flowmaster mufflers to them. Nevertheless, if we make the leap to accept empirically that all straight-through mufflers are better for power, then the Magnaflows would win over the Flowmasters had they been included. Flowmaster FlowFX Series is pretty quiet in the cabin with very little resonance. Throaty growls in the veins of retro muscle cars blazing through the road. Magnaflow R24554 - Rumble Chamber Muffler Dual In/Dual Out: 2.5"/2.25" Body Length: 17" Overall Length: 23" (3) $64.00. Flowmaster outlaw should only be used for racing or off-road applications. Designed with a round compact shape, this bad boy will announce your arrival from a mile away. You wont find any of the tinny sounds you can hear from several Flowmaster muffler types. Its for enthusiasts and everyday drivers with a knack for a superior exhaust. It's all about the sound. And you would be correct to guess that the aesthetics of this are not always appreciated, even by some car guys. Reply Like. This muffler will fit street rods, Buick Grand Nationals & T-Types, and 1982 2001 Camaro and Firebird V-8 applications. It quiets an aggressive engine and is also fit for the race track. (See Charles's law.) For those of you into mild, mellow sounds, I recommend the Thrush Hush muffler. Flowmaster 817568: A Moderate Sound Exhaust for Dodge Ram 1500 Hemi. As for the sound level, the Flowmaster 70 series average 82.1 dB at 3000 RPMs at 30 ft. away to improve sound performance while being on the quiet side. Do you have a proper set of headers or stock exhaust manifolds? Your email address will not be published. Youll feel the rumble, and that really is a personal taste. Flowmaster 70 Series uses a large case for increased volume with a deep, mild tone. Designed with a round compact shape, this bad boy will announce your arrival from a mile away. This model pumps up your engines power as it blends rapid flow exhaust technology and a mellow 50s inspired note.