Quote:
Originally Posted by avery370z
Well before I had 318whp and 260ft tq without stillen headers and the lower intake. So with that combo it gave me 20 more hp. And extrude hone is more than a port and polish. The 600 dollars was just for the work I paid 185 for a used intake.
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so now you are saying you gained 20whp with the stillen header & the ported lower intake ? which brought the result to your claimed 340whp ?
Im having a hard time believing it.
something was not tuned right before or something.
I care less about the 340whp because we know that doesnt mean much but just a reference point ... What I have problem with is that 20whp gain from stillen header and a ported lower intake.