bullitt1723
Founding Member
The 'stock GT' tested by Kennebell, had an aftermarket exhaust installed before the test. It was on page 4 of the article in the link below. Good numbers.....well over 300 pounds of torque @ 2500 rpms
http://www.kennebell.net/media/articles/2_SCREW.pdf
http://www.kennebell.net/media/articles/2_SCREW.pdf