[jas72]

yeah, headers are a must for the tibb, as with an intake. And a cat-back system so you can benefit from your headers, headers wont do much for ya until uncork the exhaust end of things, then yeah, headers are awesome. gains are around 10-12 whp. like said above, it takes anywhere around 3-5 hrs if you are able to tackle it yourself, a lift and wratchet wrenches are your friends....i did mine in 3 hrs...