Originally posted by brapple:

well I am not 100% sure but I saw a power increase when I put SVT exhaust on my car, that along with the airbox and optimized y-pipe (where most of the power came from) was maybe 8hp together. I can 140 Hp on a mustang dyno with the airbox and the FSVT 17's. second time I got 154 standard correction on a dynojet after adding the optimized y-pipe, SVT main cata nd SVT exhaust and a drop in K&N

its got to help some, but most likely not a whole lot



Unless you go back to the same dyno, that comparison is worthless.

98 Mystique GS V6 - K&N, projectors 91 Mustang LX 5.0L 00 Jetta TDI, Yay, I bought it !! 95 VW Getta TD - RIP: Nov.3,2005