You guys have a great reputation & a great web site, my question is what are the biggest HP/TQ numbers you have seen on 04 & later sporties with your kits?

Have you taken a look at the dyno chart section (http://www.nrhsperformance.com/dynoroom.shtml) of the website? Might want to post this question to another part of the forum too....Just for a "biggest number" I think that they are easily making in the mid 120s for hp and around 100 tq with stage 3 XB heads and an 88" kit and cams, a/c, pipes that all help too of course....BUT I'm not sure of that and you would do best contacting them directly...just give them a call...they are very friendly and quite helpful :D