Re: Exhaust for max performance.
To keep cost down use the stock exhaust cut resonator off install X-pipe,cut mufflers,install Dynomax mufflers, done.
My first mod was i cut resonator off stock exhaust,installed 3" H-pipe with Flowmaster mufflers 3" inlet/dual 2 1/2" outlets, Z was running low 12's at 116 MPH,after that was headers and ported plenum/IH best was 11.59 @ 120 on GSC's had to slip clutch i used to go thru clutches like they were going out of style this was almost 10 years ago and it was unheard of.
I still have that old exhaust.
Pete
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