What size headers should I get...? 1 3/4, 1 7/8 or 2"

[Demo Dude]

Or maybe this article:
http://www.newcougar.org/forums/gara...kpressure.html

[mr_desmo]

Originally Posted by Demo Dude

Or maybe this article:
http://www.newcougar.org/forums/gara...kpressure.html

You totally misunderstood me...what im saying is if you run say a procharger you need 2 inch primaries for max performance, and while you may also need them for nitrous application (175 shot on race gaz) when youre running your car on a daily basis (without nitrous) your car isnt gonna perform as well as with smaller primaries

[69Bird]

Just giving you a heads up, the ARH 1 7/8 has plenty of clearance. I just did them over the weekend and it was the easiest set of headers I have done. No problems with fit and placement, and plenty of room for spark plugs.

Originally Posted by SGOS252382

I'm also going with 1 3/4 headers. I'm most likely keeping my car a bolt on car (long tubes, high flow cats, CAI, and tune). And as I've mentiond before, I did 1 3/4 and 1 7/8 on my LS2 GTO, and I preferred the way my car drove on the street with the 1 3/4 headers.
The 1 3/4 headers should also fit easier with increased clearance (less chance of rubbing or banging noises due to clearance issues).