Thread: New muffler
View Single Post
  #12  
Old 07-02-2009, 12:38 PM
2001 5.4 2001 5.4 is offline
Senior Member
 
Join Date: Feb 2009
Location: nc
Vehicle: 2001 Ford F150
Posts: 568
Quote:
Originally Posted by primerib View Post
Where? Show me a dyno that proves your point please.

With 4 cats you'd be surprised as to how quiet straight pipes sound.
Im not sayin a muffler is gonna make a ton of HP, Im sayin it does make some difference. heres all the proof you should need http://www.magnaflow.com/newdyno.asp
Reply With Quote