sprintST
02-02-2007, 08:27 PM
I recently installed a set of Livernois Stage 1 heads and a 90 mm LSX on my 06 GTO, on top of my previous mods. I got 35 RWHP and 34 RWTQ. The heads work great and are a great bargain at $995. Here is my dyno sheet. My mods and their results are in my signature.