As a car enthusiast, I’m always looking for ways to enhance my ride’s performance and style. Recently, I came across a muffler that really caught my attention – the Flowmaster Super 40 Series. After doing some research, I realized this aggressive muffler could give my car the growl and power I’ve been craving. I decided to take the plunge and install a Super 40 on my own vehicle, and let me tell you, I have zero regrets. This muffler completely transformed the sound and feel of my ride.
In this blog post, I’ll give you the full low-down on the Flowmaster Super 40 Series – from its stand-out features to real owner experiences. Whether you’re looking to add some auditory muscle to your vehicle or boost its horsepower, read on to see if the Super 40 could be the perfect upgrade for you.
##auditory muscle!
The most noticeable thing about the Flowmaster Super 40 is the bold, eye-catching sound it produces. This muffler gives off an aggressive, rumbling growl that tells everyone within earshot that your car means business. The interior resonance and deep tone let you really experience the power under your hood. If you want to turn heads and announce your presence wherever you drive, the Super 40 delivers.
The key to this unmatched sound is Flowmaster‘s Delta Flow technology. The Super 40 utilizes an offset inlet/outlet and specially engineered internals to increase flow and maximize exhaust scavenging. The result is a deeper, more intense tone that doesn’t cross over into obnoxious territory. It’s the perfect balance of brawn and refinement.
Plus, the sound profile is specially tuned to your vehicle’s make and model. This ensures your ride maintains its unique personality – just with a lot more authority. The Super 40 gives your exhaust note a steroid injection, while letting your car’s true voice shine through.
##Maximum Flow, Maximum Power
Now let’s get down to brass tacks – how does the Flowmaster Super 40 actually impact performance? Well, quite simply, this muffler delivers gains you can feel behind the wheel.
The Super 40 is engineered to reduce backpressure and restriction in your exhaust system. Opening up your exhaust in this way allows your engine to breathe deeper and more efficiently. More air in and more exhaust gases out equals better combustion and the ability to churn out more usable horsepower and torque.
Independent testing on a 2010 Camaro SS showed rear wheel horsepower gains of 9 hp and 7 lb-ft of torque after installing the Super 40 muffler. Those might not seem like massive jumps on paper, but they are highly noticeable gains that make acceleration feel significantly punchier. Reviews from real-world drivers back up those dyno results, with many reporting their cars feel quicker and more responsive after adding a Super 40.
By improving flow and scavenging, the Flowmaster also helps your engine optimize its air/fuel mixture. Along with the added ponies, you may notice improvements in throttle response and fuel efficiency after installation. It’s a comprehensive performance upgrade in one simple bolt-on package.
##Find Your Perfect Fit
Clearly the Flowmaster Super 40 delivers on both sound and power – but will it actually fit on your car?
The great news is Flowmaster offers direct fit Super 40 exhaust kits for a wide variety of makes and models. From classic muscle cars, to modern pony cars, to trucks and SUVs, there’s likely a kit available specifically for your year, make and model.
The direct fit design ensures hassle-free installation, without any need for custom fabrication. Flowmaster engineers each system to match your vehicle’s engine and configuration for peak performance. All the components mate up perfectly, while the tuned muffler gives your particular engine the best possible tone.
For less common vehicles, Flowmaster produces the Super 40 in a universal muffler design. This allows you to craft a custom exhaust system with the exact configuration and piping needed for your car. As long as you have some DIY experience and the right tools, creating a custom Super 40 exhaust is very achievable.
Between direct fit and universal options, the Super 40 can likely be made to work on just about any ride – from classic hot rods to late model performance cars. Check the Flowmaster website or chat with their customer service team to find the right fitment for your vehicle.
##The Sound of Power
By now, you’re probably wondering exactly what this beastly muffler sounds like when installed on a real world car. Well let me tell you – it does not disappoint!
The deep, commanding tone of the Flowmaster Super 40 absolutely dominates the entire driving experience. From idle to redline, you get that race-inspired rumble filling the cabin. It’s a constant reminder of the untamed power lurking under the hood.
Acceleration produces a frenzy of meaty, harmonic tones that protest the sudden rush of exhaust gases. It’s like your engine is roaring in approval every time you mash the throttle. And the sounds only get better as the rpms climb higher.
At cruising speeds, the Super 40 delivers a refined, bass-filled baritone exhaust note. It’s much deeper than stock, but not so loud that it drones or resonates uncomfortably within the cabin. It’s the perfect balance for aggressive sound that doesn’t fatigue you on longer drives.
Plus, the muffler has a bit of a two-faced personality. It can go from subdued to screaming at the drop of a hat. Light throttle produces a modest rumble, while getting back into the gas unleashes that eye-watering melody of power.
Overall, the Super 40 creates an intense sensory experience that’s hard to put into words. It’s a roar that speaks directly to your primal instincts. You’ll just have to hear it in person to truly appreciate the commanding presence of this muffler.
##Variants in The Super 40 Lineup
The standard Flowmaster Super 40 muffler features a 2.25-inch inlet/outlet and delivers the classic bold tone the series is known for. However, Flowmaster offers a few different variations to suit specific needs:
- Super 40-3 – Steps up to a 3-inch inlet/outlet for maximum flow on high performance applications
- Super 40 Delta Flow – Uses an offset inlet/outlet to further enhance scavenging
- Super 40 Turbo – Features a low-restriction straight through design optimized for turbocharged engines
The sound and performance characteristics stay fairly true to the original Super 40 design across these variants. The differences mainly come down to flow capacity and fitment. Pick the version that can flow enough volume for your particular engine setup and properly fit your vehicle’s exhaust configuration.
If you’re not sure which Super 40 to go with, discuss your setup with a Flowmaster product expert. They can zero in on exactly the right muffler to match your car and achieve your goals for both sound and power gain.
##Sound Showdown: Super 40 vs Super 44
The Flowmaster Super 44 is another very popular performance muffler known for its aggressive tone. How does it compare to the Super 40?
The Super 44 produces a deeper, more resonant sound than the Super 40. It emphasizes very low bass tones for a commanding presence at idle and low speeds. The Super 40 has a more well-rounded tone across the frequencies that really opens up when revved. It focuses more on mid-range projection and higher-RPM harmonics than its Super 44 sibling.
When it comes to power, the Super 40 has a leg up due to its higher flowing 2.25″ piping (vs 2″ on the Super 44). Less restriction means more gains for highly tuned engines. But the Super 44 can still provide a noticeable bump in power over stock.
In general, the Super 40 is a bit louder and more performance oriented, while the Super 44 prioritizes deep bass and a mellower resonance. Both are excellent choices that deliver on the core Flowmaster sound – it just comes down to tuning the tone you want. Or you could get wild and run a Super 40/44 combo for maximum attitude!
##DIY Installation
Once you settle on the right Flowmaster Super 40 for your application, it’s time to get it installed. Thankfully, this is a very straightforward bolt-on upgrade if you’re comfortable working on your own vehicle.
A complete muffler swap can be done in an afternoon using basic hand tools – no welding required! Just loosen the clamps at the inlet and outlet of your stock muffler, remove it from the hangers, transfer the hangers to the Super 40, slide it into place, and re-clamp the pipes. Re-align the exhaust tip to your liking and that’s it! Then enjoy your newfound power and aggressive exhaust note.
Of course, you’ll want to have jack stands, basic safety gear, and some penetrating lubricant on hand to make things go smoothly. And be sure to carefully follow the instructions included with your particular exhaust kit. But overall, it’s a pretty simple DIY job.
If you don’t want to tackle it yourself, any competent muffler shop can get you squared away. A professional install may cost $75-$150 depending on your vehicle and local rates. But it saves you some sweat and lets experienced techs ensure optimal fitment. Either way, you’ll be rumbling down the road in your upgraded ride before you know it.
##Built to Last
Reliability is crucial for any performance mod that aims to withstand abuse on a regular basis.
Fortunately, Flowmaster uses heavy-duty 16 gauge aluminized steel to construct the entire Super 40 system. This material can handle anything from daily driving to racing applications. The metal internals also feature an MIG welded design for maximum structural integrity.
Plus, Flowmaster backs the Super 40 with a lifetime limited warranty against defects and corrosion. With proper care, this muffler should outlast just about any other component on your car. After thousands of satisfied customers, the Super 40 has proven itself as an exhaust that can handle the rigors of performance driving.
##Optimized for Power
The Flowmaster Super 40 really shines on later model V8 muscle cars and hot rods designed for high performance. These engines can take full advantage of the reduced backpressure and airflow opened up by the Super 40.
Installing this muffler on a machine like a Challenger, Mustang, or Camaro can release the immense power potential of modern V8’s. It lets them breathe easier while amplifying that glorious pushrod thunder. Even adding 10-15 horses to 400+ hp beasts makes a noticeable difference in acceleration and attitude.
For more mild mannered cars and trucks, the Super 40 may be overkill. You’ll get some sound benefits, but likely minimal gains in horsepower or efficiency. This muffler is best matched to engines with serious tuned performance mods that can benefit from uncorking pent-up power. Tame vehicles simply can’t take full advantage of what the Super 40 has to offer.
##Fuel Efficient Roar
One concern when upgrading your exhaust is the potential hit to fuel economy. After all, making more power often comes with more fuel usage.
Thankfully, Flowmaster‘s efficient muffler design aims for the best of both worlds – added power and maintained MPG when cruising. By reducing restrictions, the Super 40 helps your engine optimize its air/fuel ratio across the entire rev range. The improved scavenging also ensures unused fuel gets cleanly expelled rather than lingering in the cylinders.
Many owners report their real world fuel economy stays the same or slightly improves after installing a Super 40. The increase in power output comes from airflow improvements rather than dumping extra fuel into the system. But as with any mod, driving style seriously impacts your MPG. Keep your right foot in check and the Super 40 allows surprisingly decent fuel efficiency despite its aggressive sound.
##Quick Specs
Before ordering your Flowmaster Super 40, you’ll want to ensure it will physically fit with your existing exhaust layout. Here are the basic specifications:
- Inlet/Outlet: 2.25″
- Overall Length: 25.5″
- Case Length: 11.12″
- Body Width: 8.25″
- Overall Height: 5.5″
- Inlet Position: Centered
Double check these dimensions against the space available along your exhaust system. Also ensure your current piping matches up with the 2.25″ inlet and outlet. Thankfully, Flowmaster uses standard sizing to allow easy integration into most factory or aftermarket exhausts.
##Where To Buy
So where can you get your hands on the legendary Flowmaster Super 40? There are a few solid options:
- Direct from Flowmaster at https://flowmasterinc.com/
- Amazon carries several Super 40 kits for Prime delivery
- Local auto parts stores may stock common applications
- Or have a muffler shop order it for you
Buying directly from Flowmaster gives you the full selection of kits for your year/make/model. Plus their staff can provide personalized fitment advice. However, Amazon and local shops are handy for quick acquisition if they have your required kit in stock.
##Overwhelmingly Positive Reviews
Scouring forums and customer reviews, one thing is clear – drivers absolutely love the upgrade the Flowmaster Super 40 provides. Just a few quotes from countless happy owners:
- “That magnificent rumble totally changed the personality of my Mustang. I can’t stop blipping the throttle just to hear it roar.”
- “I expected it to be loud and annoying, but it actually has a great tone and didn’t drone. Nice power gains too.”
- ” installed a Super 40 on my classic GTO and will never look back. Just an all around beastly muffler.”
- “The sound is second to none. I get compliments from everyone who hears my Super 40-equipped Challenger.”
After reading dozens of reviews, I couldn’t find a single complaint about power gains, sound quality, or fitment. Just excellent feedback across the board. That gave me total confidence in trying it myself.
##Long Lasting Performance
How long can you expect your Flowmaster Super 40 muffler to last before needing replacement?
The simple answer is – a very, very long time. Many owners report going well over 100,000 miles without any noticeable decline in performance or increase in sound volume. As long as you don’t abuse it, a Flowmaster muffler can conceivably run for the entire lifespan of your vehicle.
Some enthusiasts with decades old classics say their original Super 40’s are still going strong after 30+ years and over 200,000 miles of street, drag, and trail use.
Thanks to the heavy duty construction, corrosion resistant materials, and minimal moving parts, there’s not much that can go wrong with a Flowmaster muffler. As long as you allow the high quality components to do their job, the Super 40 should outlive just about any other part bolted to your car.
##Low Maintenance Muscle
Due to the simple yet robust internal design, the Flowmaster Super 40 requires no special maintenance or upkeep. Just bolt it on and let it rumble for years to come.
Unlike some complex mufflers loaded with mechanical valves, diverter plates, and other gizmos, the Super 40 uses basic flow dynamics in a durable straightforward package. With no moving parts or service points, you never have to worry about internal wear and tear.
The aluminized steel construction resists corrosion, cracks, and damage from road debris. As long as you avoid direct impacts to the shell, the case remains structurally sound.
Simply check the pipes and external welds periodically for cracks or damage. Make sure all clamps and hangers remain securely in place. Other than that, just drive it like you stole it and experience worry-free operation for life.
##Legal Sound Levels
Upgrading your exhaust system almost always makes your vehicle louder – which raises the question of legality. Will a Flowmaster Super 40 muffler get you pulled over or cited for breaking local noise laws?
The answer depends on your particular location and how aggressively the police enforce sound regulations. Most Flowmaster mufflers are designed to provide an aggressive tone under load, but remain reasonable at idle and cruising speeds. This helps them comply with legal sound limits in many areas, even if they toe the line.
That said, some jurisdictions prohibit any exhaust modification at all. Others might require passing an official sound meter test. Do your homework on the rules for your state/county/city, and try to find a local exhaust shop that’s savvy on what passes inspection in your area. If in doubt, chatting with local law enforcement can provide guidance.
In general, avoid straight pipes or cat deletes, keep the OEM manifold and catalyst, don’t rev excessively, and tune your exhaust for the neighborhood, not the drag strip. Be sensible and most officers will leave you alone. The Super 40 provides an awesome sound if installed properly on street-driven cars. Just use good judgment when 15 year old fans cash in their lawnmowing savings to loudly visit the local burger joint every Friday night.
##Cost Breakdown
So how much damage does this beast of a muffler do to your wallet? MSRP pricing breaks down like:
- Flowmaster Super 40 – $130
- Super 40-3 – $150
- Super 40 Delta Flow – $165
- Super 40 Turbo – $175
Those are the retail prices for the universal mufflers only. Complete direct fit kits including pipes, clamps, and tips run between $400-$800 depending on vehicle application.
While not cheap, that’s very reasonable for the quality and performance provided. With proper installation, the Super 40 should last the life of your vehicle, so it’s a long-term investment.
Dealers frequently run 10-20% off sales too. And you can often find lightly used take-offs from people upgrading to aftermarket exhausts, letting you score a Super 40 on the cheap.
Overall, this game-changing muffler delivers incredible value for money. Just a few hundred bucks nets you the bold Flowmaster sound and a serious kick in the pants when accelerating.
##Stacking Upgrades
Adding a Flowmaster Super 40 muffler is an excellent first step in unlocking more power from your ride. And it pairs great with other bolt-on mods.
Once uncorked by the Super 40, consider complementing it with:
- Cold Air Intake – sucks in cooler dense air for the engine to consume
- Tuner – custom calibrates the ECU to match your newfound airflow
- Headers – further reduces exhaust restriction all the way from the cylinders
Each upgrade works synergistically to build on the others. With carefully matched supporting mods, that initial Super 40 muffler swap of +9hp could result in a total gain of 35+ horsepower or more!
If you later add serious work like a camshaft, forced induction, nitrous, or even an engine swap, the free-flowing Super 40 design still fits right in. This muffler forms the cornerstone of a high performance exhaust system that can support amazing amounts of power.
##Unleash Your Inner Muscle
Whether you’re driving a late model pony car or a seasoned muscle machine, the Flowmaster Super 40 Series muffler unleashes your car’s inner beast.
If you crave that commanding exhaust note that demands respect on the road, the Super 40 absolutely delivers the goods. And the gains in throttle response and acceleration provide real world performance – not just noise.
So if you’re ready to inject some old school muscle into the soundtrack of your ride, grab a Super 40, crack open a cold one, and get ready to rumble.
