I used the Factory kit, it worked well for me. I paid $10 dollars extra to get the titanium needles. Anybody know if there is actually any benefit to the titanium needles or did I just pay $10 bucks for nothing? Ditto on LDH's advise too. Its a real bugger to get all the hoses and everything where they are supposed to be because of the clearance. Ditching the PAIR would probably give you more room to work. I left mine in but blocked the airbox port to it with a wirenut. For the front screws, hes right on the money there. I taped mine to the socket to lower them in on reassembly after extracting the first one from where it fell. This was my first re-jet job so I took plenty of high res pics with my digital camera as I went along to make sure I could get it all back together. If you want to see any let me know.