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🔥 Own the street with the legendary roar of Flowmaster 40 Series!
The Flowmaster 40 Series Chambered Muffler delivers the iconic aggressive exhaust sound with a durable two-chamber design. Crafted from 16-gauge aluminized steel and fully MIG-welded, it enhances horsepower and torque by improving airflow and reducing back pressure. Its universal fitment and multiple configurations make it the go-to choice for muscle cars, street rods, trucks, and custom builds seeking that unmistakable Flowmaster attitude.
| Asin | B000182DMO |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #20,042 in Automotive (See Top 100 in Automotive) #6 in Automotive Performance Exhaust Mufflers #230 in Automotive Emission & Exhaust Products |
| Brand Name | Flowmaster |
| Compatible With Vehicle Type | Car |
| Configuration | Center/Offset |
| Customer Reviews | 4.7 4.7 out of 5 stars (431) 4.7 out of 5 stars |
| Global Trade Identification Number | 00700042010332, 00700042029426 |
| Included Components | Flowmaster 42541 40 Series Muffler - 2.50 Offset IN / 2.50 Center OUT - Aggressive Sound |
| Item Dimensions | 20.25 x 10.45 x 4.55 inches |
| Item Highlight | Original 40 Series, aggressive sound, 16-gauge aluminized steel, for muscle cars, street rods, trucks, and SUVs (42541) |
| Item Type Name | Flowmaster 42541 40 Series Muffler - 2.50 Offset IN / 2.50 Center OUT - Aggressive Sound |
| Item Weight | 9.5 pounds |
| Manufacturer | Flowmaster |
| Manufacturer Part Number | 42541 |
| Manufacturer Warranty Description | Check with the manufacturer |
| Material Type | Alloy Steel |
| Model Number | 42541 |
| Number Of Items | 1 |
| Oem Equivalent Part Number | 42541 |
| Part Interchange Info | 42541 |
| Shape | Oval |
| Unit Count | 1 Count |
| Upc | 700042010332 700042029426 |
User
Thank you for master thank you Amazon
They must have the 40 series chambered muffler 2.50 inch offset and 2.50 inch center is a good look a good sound a good quality a must buy thank you Flowmaster
User
Sound approved muffler
Our grandson asked for this for his Birthday and he was so excited when he heard the rumble of this muffler after his dad installed it.
User
40 series flowmaster
Sounds good! 40 series Flowmaster
User
Good
Great buy
User
Flowmaster
Envío super rápido...sonido de show
User
Smooth sound
I bought this muffler for my 2011 F-150 5.0 Super Crew. I kept the stock resonator on and had a turn down right after the rear axle. I kept the resonator because I have a 6 month old and I did not want it to be too loud. It has a nice smooth tone, and you know it's there when driving and idling. I gave it four stars because as soon after I put it on my gas mileage dropped 2-3 mpg, and no it's not from led footing it. I was driving the speed limit and using cruise control. After a couple of days of driving my mileage was back to normal. Guess it just took a couple of days for all 123 computers on the truck to learn something was different. But it has a great deep sound.
User
2010 Ford F-150 4.6L V8
Perfect amount of sound for me a 35 year old. Great idle, great sound when giving it just a little gas and on the highway. Left my resonator on and so I haven’t noticed any drone on the highway with the radio on just on low volume. Would buy again.
User
👌
Put this on my wife's jeep commander with the 5.7 hemi. It sounds great
User
Great quality
All as explained and expected. Amazing mufflers.
User
Sounds great!
Sounds great like all the other Flow Master exhausts I’ve had installed! Highly recommend for a GM 5.3 engine.
User
Good Product and Service !!
A+ A+ A+
User
Excellent!!!
Love the sound. Not overly loud just a very nice throaty sound.
User
Nice sound
I bought this for my 2016 Ford F150 V6. Even though is says it doesn't fit pipes can be made to make it fit. It has a nice throaty sound at idle and up to 5000 rpms on a V6. Much better than the stock muffler. I also deleted the resonator. Good product
Trustpilot
1 month ago
3 weeks ago