- Available in 409S Stainless Steel or Aluminized Mild Steel
- Available with either Single or Dual Outlets
- 3-Year Warranty for Aluminized Mild Steel
- Limited Lifetime Warranty on Stainless Steel Mufflers
Like all Flowmaster mufflers, the 40 Series Delta Flow mufflers improve exhaust scavenging for increased torque and horsepower. The precision positioned Delta deflectors have a dual function, as they are positioned to create a low pressure zone that improves exhaust scavenging, while also reducing the interior resonance. The unique design of the 40 Series two chamber delta flow mufflers makes them perfect for performance cars used daily or on long drives. The exterior sound will turn heads, while the interior sound level provides the driver with the beautiful music of a performance engine at a comfortable sound level. The mufflers are fully MIG welded for maximum durability and you have a choice between aluminized mild steel and stainless steel construction.
Flowmaster mufflers differ in technology and tuning, and thus in tone and character, to give your performance engine a sound to your personal liking.
All Flowmaster mufflers are tuned for maximum performance. All Flowmaster mufflers produce a beautiful deep performance tone. Choosing the right Flowmaster muffler is not a technical decision – it is all up to your personal taste. It’s A Sound Decision®.
Flowmaster mufflers employ two unique technologies developed by the company; the patented Delta Flow and the Laminar Flow. They give different characters of sound and can be tuned to achieve the desired exhaust note. Flowmaster Exhaust System Technology is so versatile, and gives such a high degree of control, that it is used both by racers, who want maximum power, and by the U.S. Air Force in Stealth applications where maximum silence and minimum heat emissions are prime considerations. Be it for a domestic or import truck, SUV, off-road warrior, daily driver, muscle car, euro-spec cruiser or sport compact vehicle Flowmaster always has the right muffler for you.58.61 406.58
Flowmaster® has its roots in solving the engine noise problems encountered by California racers in the 1980s. In 1983 Flowmaster’s founder, Ray Flugger, created his first patented design of racing silencers, which dampened noise with minimal loss of power. Ray attached handles to ease carrying the square shaped race mufflers through the race pits, and the mufflers became known as the "suitcase mufflers." Today, the innovative Flowmaster mufflers are the result of years of development with top race engine builders, thousands of hours of dyno research and "real-world" on-track testing.Product Reviews (30)
Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.Flowmaster® - Street MufflerAverage Rating: 4.8 of 5APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYShow Next 10 Shop Now(4.8)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2006 Dodge Charger
| Posted by Rashawn | (Poughkeepsie, NY)
I am more than satisfied with this product. You definitely get the bang and growl for your buck, literally. Sounds like I changed the whole engine in my charger.Was this review helpful for you? YesNoShare this review:(4.3)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2013 Dodge Ram
| Posted by Tim | (Coleman, WI)
The muffler was fairly easy and straightforward to install. Mine was an exact fit, which I wanted.Was this review helpful for you? YesNoShare this review:(4.8)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2000 Ford F-150
| Posted by Nelson | (Bethesda, MD)
I have the 2000 F-150... Smooth ride and it sounds super nice. Love it.Was this review helpful for you? YesNoShare this review:(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2011 Chevy Camaro
| Posted by Henry | (Cedar Grove, NJ)
The muffler came in time, exactly as described. Sounds great. I would definitely recommend this product. The sales staff was very informative and knows the product well.2 people found this review helpful.Was this review helpful for you? YesNoShare this review:(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2009 Chrysler 300
| Posted by Freddy | (Jackson, MS)
This muffler is great. Just the right sound, not too loud.3 people found this review helpful.Was this review helpful for you? YesNoShare this review:(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2000 Ford Explorer
| Posted by Darwin | (Brooklyn, NY)
I installed the Flowmaster Delta 50 on my 97 Explorer because my old, original muffler had seen better days. What I didn't expect was for my vehicle to have such a noticeable increase in horsepower! I can't say enough about how great it sounds when I'm driving down the highway. It has a nice rumble that's noticeable but not too loud.2 people found this review helpful.Was this review helpful for you? YesNoShare this review:(4.5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2007 Ford F-250
| Posted by Ken | (Harborcreek, PA)
I recently ordered a Flowmaster muffler from CARiD and the experience was a very good one. The order was filled very fast and sent. I received it in no time at all. It was in great condition and sound great on my truck, and I couldn't beat the price.3 people found this review helpful.Was this review helpful for you? YesNoShare this review:(4.8)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2013 Dodge Ram
| Posted by Guy | (Edmonton, AB)
This muffler is a true direct fit and is very easy to install. It has 3 chambers so it is not the most aggressive Flowmaster but it does sounds aggressive under heavy acceleration. It is quiet however at low RPM. My only issue is when the HEMI is on 4 cyl mode, there is a very noticeable drone sound. As for increase in performance, it is noticeable instantly. There is definitely an increase of torque throughout the power band. Accelerations are much better now.6 people found this review helpful.Was this review helpful for you? YesNoShare this review:(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY1999 Ford F-150
| Posted by Jimmie | (Port Gibson, MS)
I got my muffler in good timing, had it put on. Sounds good! I have a TV in my truck, and while driving, I do not hear it in the cab. A great muffler, a little more torque. Haven t tried top end yet.6 people found this review helpful.Was this review helpful for you? YesNoShare this review:(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY1967 Oldsmobile Cutlass
| Posted by Matthew | (Woodland Hills, CA)
These mufflers from Flowmaster are the quality I expected for my muscle car projects. They sound great and add performance to my rides.2 people found this review helpful.Was this review helpful for you? YesNoShare this review:
Product Reviews (30)
Product Reviews (30)
You will never pay more with CARiD! Not only will we match prices from any competitor's website or other reputable source, we will continue to honor that promise for up to one year after your purchase.
We'll match the price at time of purchase, or refund you the difference if done after the purchase. Either way, we are totally committed to providing you the best online shopping experience.
We're car and truck enthusiasts, just like you! And it's enthusiasts we hire in our Sales and Service Centers. Many of our staff are ASE certified and have spent years in the retail auto business.
We conduct our own in-house training, and we even bring vendors to us for hands-on product training demonstrations. You're getting true expertise when you phone or email us!
With hundreds of vendors, and tens of thousands of components for sale, we put tremendous effort into coordinating our data with our vendors' data in order to guarantee that you get the correct part.
Our huge database is regularly cross-checked to keep it current and optimized. At times, our thoroughness makes our data even more accurate than our suppliers! This rigorous process means that you can always order with confidence.