LT header newb question.
my car is in my Sig. and the guy selling it doesnt know if its for an LS1 or an LT1. im guessing the only indication is the the Cylinder Head Port which is D-Shaped. so is this for an LS1 or an LT1? also, does it look like i can use cats with it? i need to be smog legal.
http://b.im.craigslist.org/98/9t/Fld...Llrw6RFHCt.jpg
http://a.im.craigslist.org/hM/yO/ebQ...dXzJTOkCOO.jpg
http://d.im.craigslist.org/WV/1V/1Bs...jfQVV2eCg1.jpg
http://a.im.craigslist.org/Op/SX/m69...TtBCSJXacO.jpg


