Not to bad of an install. My friend works at a shop with air tools and a lift. So life was good. The only PITA was we couldn't fit our sockets on the header bolts when we got the JBA's on. The car runs a little smoother and it has a little more mid to upper rpm gain. I already had the Spintech's and the Dr.Gas on so I really didn't see a huge difference. Not that I was looking for a neck snapping improvement. Just thought I would share.