Hi
Am considering fitting a Milltek exhaust to my GTi, does anyone know if this would invalidate the manufacturers warranty?
Also, if anyone has fitted a Milltek exhaust to their Gti can you tell me roughly what sort of power / torque gains you got over standard?
Am just starting out on the performance modification route and don't want to go mad (i.e. change engine internals), but if there are any modification recommendations which won't break the bank but offer a decent improvement then please let me know e.g. filter / exhaust etc
Thanks
Russ