Well I am PI swapped over but I have before and after times and dyno #'s. Before I had o/r xpipe with bullet mufflers. 3.73s. dynoed at 191hp/270tq and ran 9.70s at 70mph. after with mods in sig I have ran 8.90s at 78mph and dynoed at 241hp/295tq. BTW the car has 194,000 miles on it with...