thanks!

the induction kit iv got at the moment is a k&n and came with the car, plug goes straight into that....
just wondering if i need it or anything?
dont really want to be drilling the new induction seeing as it cost alot!
dont really sure the other plug is disconnected. the car has been running fine yep, only noticed it the other day. il see about re attaching it now and seeing if the car reacts any different

what difference does it make having it on or not?