Header banner
Revain logoHome Page
Daniel Oliver photo
1 Level
828 Review
52 Karma

Review on Flowmaster Super 44 409s Muffler (2.5 Inch Inlet/Outlet) by Daniel Oliver

Revainrating 2 out of 5

ineffective on mufflers

Slightly louder than stock muffler plus my gas mileage is down three mpg. Called Flowmaster tech support and got a response. I wish there were other reviews when I bought this but thought they were a reputable company.

Pros
  • Sturdy all-welded stainless steel body 409
Cons
  • Negative torque present