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Review on πŸ” Flowmaster 942551 2.5In(O)/Out(C) 50 Series Df Muffler: Superior Flow Control for Enhanced Performance by Dipp Samrock

Revainrating 5 out of 5

Nice low rumble, with a power boost at high revs.

This was my third purchase of this muffler in 23 years. I like the quiet roar and the power increase on my old four cylinder engine. The 3000-5000 rpm power range is quickly increased with this larger muffler. Installed on a 1997 Mercury Tracer Van with engine modifications. The existing 2" pipe was extended to 2 1/2".

Pros
  • Quality construction
Cons
  • Frequency