topbliss
Senior Member
so... You guys were able to eeek out 22 hp with just an X pipe and bassani mufflers with the cats still in place?? wow.. the stock exhaust must be really restrictive... excellent..
"JPC got their 2011 GT Tuesday evening from the dealership. From there it went directly back to the shop and right onto the dyno - what a great way to break in a new vehicle. Stock they were able to push right at 350 RWHP on on the Mustang. From there they concentrated their time on the rear end - 4.56:1 gears, 31 spline axles with C-clip eliminators, and a spool. Looking around the shop to see what else they could put on the 'Stang, they came across an old Bassani 3" X-pipe and 2.5" race mufflers - while retaining the stock catalytic converters. "We couldn't even get a K&N filter in it, the local places were out of them," said Godfrey.
With the new-found bolt-ons in place, they managed to pick up some power, now netting 372hp to the rear wheels"
"JPC got their 2011 GT Tuesday evening from the dealership. From there it went directly back to the shop and right onto the dyno - what a great way to break in a new vehicle. Stock they were able to push right at 350 RWHP on on the Mustang. From there they concentrated their time on the rear end - 4.56:1 gears, 31 spline axles with C-clip eliminators, and a spool. Looking around the shop to see what else they could put on the 'Stang, they came across an old Bassani 3" X-pipe and 2.5" race mufflers - while retaining the stock catalytic converters. "We couldn't even get a K&N filter in it, the local places were out of them," said Godfrey.
With the new-found bolt-ons in place, they managed to pick up some power, now netting 372hp to the rear wheels"

