Performance from Long Tubes????
#5
Originally Posted by gmtechnician
i got .4 off and 2 mph with my longtubes and magnaflow. thats all i have done to the truck.
Thread
Thread Starter
Forum
Replies
Last Post
AHelm3
Dynamometer Results & Comparisons
3
Apr 8, 2016 07:51 AM
Suburban2500
8-Lug Truck Performance
9
Jul 13, 2015 09:57 AM




