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Review on Walker 21507 Quiet Flow Stainless Muffler by Brian Malith

Revainrating 1 out of 5

Improper straight fit size

Intake and exhaust pipes were much smaller than the factory f250 2003 7.3. This results in a loss of performance due to clipping and is a problem in filling the gap.

Pros
  • Replacement parts
Cons
  • Plenty