good question. Anyone that's installed it?
Im pretty sure they will dyno identical due to the IMRC's opening fully on WOT passed a certain (2500ish maybe?) RPM. I hit up a dyno day with mine operational and put down 450whp followed up by two passes right around 441-442 whp. I never got a baseline before but the same day, literally right before I made my runs a 2015 GT PP put down 386whp with nothing more than a catback exhaust.
386 is a touch to the high[er] side, generally I think it's around 370-375 for a manual, bone stock, but even if this dyno was reading a little high, a 450 best (and a 441/442 probably with a little heat soak) is pretty fantastic.
Yeah I use track numbers over dyno but was happy to hit up a local dyno day a buddy put together. I was extremely thankful that the near stock 15 showed up, simply to be able to see the difference between his mods and mine! I was HOPING for 430's and was figuring it would come in a tad lower so I was beyond pleased with the results.386 is a touch to the high[er] side, generally I think it's around 370-375 for a manual, bone stock, but even if this dyno was reading a little high, a 450 best (and a 441/442 probably with a little heat soak) is pretty fantastic.
Even the lower numbers, with a 4% or so downward correction, is still putting you right at 500HP.
Yeah that is a big difference between the two thanks for sharing. You don't have headers right? I was going to wait to get headers before getting the manifold but it looks like a nice gain regardless.
Oh yeah, I sort of just assumed, but I don't see them in the mods in his sig, so wow, yeah, if that's the case, he's got another nice bump in power available.
