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New member! Would like info on modifying me 172 cup got scorpion s/s system and k/n high flow filter panel! What else can you do that builds up your bhp?
exhausts and filters do almost nothing for bhp figures but will help the engine breathe better. A remap adds 5 or so bhp but will drive smoother and iron out any flatspots, rough running. ITB's , turbo and supercharger are where the big gains are but you'll be spending over £2k. for either.