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Originally Posted by CJ_Boxster
I dont think you can get 80 to 90 bhp from just a free flowing exhaust. Stock bhp is 204 and with your header and exhaust setup you might be pulling 230 bhp max!
Do you have a Gtech or similar device to check the whp? That would help you get a more acurrate number as far as hp goes.
EDIT im dumb, sorry didnt realize you had an boxster S. In that case i would say 280 and 290 bhp would be pretty realistic cause the S stock is 250 bhp  |
also FVD OBDii flash...add another 15-20.
