Quote:
Originally Posted by xpanda305x
i think these are the headers im going to go with. how about dynos? anyone have proven power rwhp and tq? how much are they making before and after? i mean for 400 for headers and they are LT and then you add a tune for around another 400ish or so. under a grand for a big buck ya digg? i know im planning on doing E85 and these headers and tune!!!
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I gained around 30 rwhp with the header, no cats, full exhaust, new 13 hp tune, but with factory intake at 264rwhp.
The dynojet 248x usually dyno in waaaay lower than say the newer 224 or 424 x. Every factory car that i see dyno on 248 x are getting no more than 235 stock.
So there you have it, not bad at all.