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I think it was Vengeance Racing that did back to back dyno runs with ARH, Kooks, and the original Pfadt tri-y. The ARH's had way better low end torque, and better peak numbers as well.
Check out the recent posts on LG's stepped header. 1 3/4" stepped to 1 7/8's. They dyno'd over 450 whp and torque under the curve was awesome. That is the direction I ended up going...
by the pics primary tubes look very short compared to ARH
I love the LG 1 7/8 headers with the 3 inch mid pipe with the rear cats off the car. hey are almost as long as the TSP headers but the R&D that LG put into the tubes and the end of the headers. Paul we don't need no more than this in these cars. I will not be going crazy in the c7 like WE did in the c5 2 inch tube headers almost 1200 rwhp in a auto having to buy and chg out every little part to just hope the dam thing would hold together for a full season. Robert
Last edited by robert miller; Jan 29, 2016 at 10:33 PM.