Hi. I've got a pretty much standard, apart from a cat back 3" exhaust and a fake hks dump valve, version 7 STi import. I was wondering what difference it would make If I fitted some sort of induction kit (K&N Typhoons been recommended) or panel filter, remove the centre cat and have an ecu-tek re-map.

Would it make much difference both bhp/torque wise and real life on the road difference. Also have you any idea what mine should be as it is.

Thanks

 

I would use a panel filter rather than induction kit but yes a remap will help lots with throttle response, usability, power and torque.

this might help with power outputs

Simon