Quote:
Originally Posted by BlueDemon
I know this thread is old but how are all you guys making that much? I made just with kit install, headers and test pipes, 356whp. That is crap if u ask me considering the amount the kit cost. I was on a dyno that is lowest reading dyno but even...I dont know what the issue is. And just of curiousity, stock internals ate good wih 9lb pulley?
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Definitely sounds like you need a retune. What shop did the install? ANMVQ is right. You are losing power with the test pipes. I would go back to factory cats (you can leave the headers).
Depending on where you got the kit, who did the install, and what is available in your area you might have some options for tuning.