Re: do i need 2 change programer if exhaust is changed 2 a big gun slip on?
Originally posted by gabeyoung80 2006 king quad just changed exhaust 2 a big gun slip on do I need a aftermarket programer or will the efi adjust it self??????????
You still need a programmer of some sort. If you just want a cheap way to get more fuel I would try to find a used PC3.