billo
Full member
hi bit of advice ive got a k&n panel filter in my airbox instead of spending money on other filters ive heard you can drill holes in your air box to give it a bit of a grunt i experimented this by just opening up the box by half inch and went for a drive the sound was very subtle and only grunted on hard acceleration which did sound very nice but im very unsure about drilling the air box cant afford upgrades but did like the sound , any advice ! cheers