So, my FI exhaust has been on order for several weeks and at this point I'm committed, but I have to admit I'm curious... has anybody dyno'd the stock Nismo exhaust vs. the FI exhaust? I'm curious if the FI exhaust has proven gains over the Nismo exhaust or if it's going to be about the same.
Either way, I'm losing 25 lbs. with the CF muffler setup vs. the stock Nismo exhaust... and it's gonna sound beastly in conjunction with my Berk HFCs.