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Review on 🏎️ Performance Boost: Flowmaster 527504 2.75" In(D)/2.5"(D) Out 50 Series Muffler Bb by Doug Hinrichsen

Revainrating 4 out of 5

Muffler work in progress

I was told the Flowmaster would help improve fuel economy. MPG has not increased. It's too loud and scratches when accelerating. No solution yet

Pros
  • Excellent design
Cons
  • I don't remember but there was something