I have got a 2003 Astra coupe SE2 1.8 with a BMC CDA and a cat-back stainless steel exhaust system.
I am looking at ways to get more power out of my engine after reading lots of exciting posts on here about guys with turbo engines getting massive gains.
From what i have researched on the net i think i can get an ecu remap done to take my power from 125bhp to 140 bhp. Would this be worth the £180-plus which it would cost, would i notice much difference and also how much would my existing induction kit and exhaust bring on top of the 140bhp?
Cheers for any help or thoughts.