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Depends on the chip mate. Stage 1 is usually around 260 bhp but I have an Ahmed bayjoo stage one which made 291 bhp and 316 lbft and boosts to about 20 psi so they all vary.
259.9bhp @6k but was on a poorly built engine .
13psi iirc. Torque was down it was horrid to be honest but since a rebuild it 'feels' much sweeter with exactly same chip/spec .
