TOTALFLOW 4" inch diesel straight through performance exhaust mufflers constructed with 409 stainless steel, our race exhaust mufflers designed to allow for maximum free flow—and horsepower. Whether you have a true dual exhaust system or not, our mufflers will make you master the flow & the sound of your exhaust system giving you the max dyno results. Our bullet race exhaust mufflers, resonators and glasspacks & can be a great addition to your on road super custom project. TOTALFLOW mufflers feature a straight through, perforated 409 stainless steel core wrapped with stainless steel mesh acoustic material, making it the ideal mufflers for your next custom exhaust project, allowing for a free flow through the pipe with very little restriction.
Made from Heavy Gauge 409 stainless steel.
Free flow muffler, straight through perforated stainless steel core wrapped with stainless steel mesh to enhances sound, exhaust flow & improves performance.
Minimal decibel reduction over open headers for deeper & more Aggressive Sound.
Perfect for any custom exhaust project or muffler upgrade.
Fully Welded Case.
Universal Fitment Compact size muffler - will fit anywhere.
Use the following discount code for 0% off your next purchase!
Featured Reviews
TOTALFLOW Verified Customer
03/08/2020
Fit great on my Duramax straight pipe exhaust it is 4" i.d. on one end and 4" o.d. on the other
TOTALFLOW Verified Customer
12/13/2019
I get 2 of the 7" and i put it on a chevrolet silverado and the sound its great the sound it's so diferent from all the others brands. I really recommend this muffler. Cheap and amazing.
TOTALFLOW Verified Customer
10/27/2019
Exactly as described. Worked perfect for my DPF removal.
TOTALFLOW Verified Customer
10/25/2019
Exactly as described, all measurements were accurate per the description. Will order again when needing more.
TOTALFLOW Verified Customer
10/14/2019
Appears to be made well. Haven’t installed it yet but happy so far