Thread: Dual Mode exhaust
View Single Post
Old 08-26-2013, 04:31 PM   #9
cornerspeed92


 
cornerspeed92's Avatar
 
Drives: 2013 1SS 1LE
Join Date: Jul 2012
Location: Colorado
Posts: 4,188
Yes,there is a 4-6hp gain.GM isn't going to pay to re certify the NPP.This was already done with the Corvette,and proven then.
__________________
cornerspeed92 is offline   Reply With Quote