Your cart is empty.
Your cart is empty.The Delta Force 40 series race mufflers utilize Flowmaster's Delta Flow technology and feature excellent power characteristics with good sound reduction qualities. Recommended for all racing applications where mufflers are required with a substantial decibel reduction over open headers. Please call the Flowmaster tech-line for assistance with specific decibel requirements and applications.
Kira
Reviewed in the United States on October 26, 2022
Easy to install this slips right over the 4” exhaust and is easily welded. This is not a clamp on muffler. Not really stated in the description.
Michael Breese Fields
Reviewed in the United States on December 5, 2021
Exactly what it states, 4” inlet and outlet, they are flanged so they slip over a standard 4” exhaust pipe. I put this on my 2015 6.7 power stroke diesel and man this thing sound mean! It’s got a deep rumble with the whistle of the turbo and doesn’t mess with the exhaust flow any. Good good product
tom
Reviewed in the United States on September 15, 2018
I purchased this Flowmaster 40 series muffler to get a different sound out of my 87 Firebird. This gave me a very deep tone that's not overbearingly loud. I wanted loud but not as harsh as the strait though muffler I had on the car. It's well made in the USA, fit my application and sounds great. You can hear it on YouTube (Firebird 40 series Flowmaster)
Customer
Reviewed in the United States on March 2, 2016
I am using this as a resonance chamber. Size and fit were as expected. My new system for my 1998 Dodge with 12 valve Cummins Diesel engine has Magnaflow 60111 catalytic converter and a Diamond Eye 4" Turbo back system w/muffler and this flowmaster muffler. Sound level at idle is about 75-80 db at the tailpipe.
Customer
Reviewed in Canada on February 4, 2016
loud and your neighburs will agree!
Recommended Products
$68.78
$ 32 .99 $32.99
$46.78
$ 20 .99 $20.99