Reviewed By John W (Havre De Grace, MD) Reviewed for a
—1/10/2015 1:52 PM
Great for larger tires for speedometer and extra power to turn them.
Reviewed By matt e (STANARDSVILLE, VA) Reviewed for a
—8/26/2013 1:47 AM
The HyperPAC system is a great up grade for any type of driver. Because it gives noticable power gains as well as improved MPG Hands down great product!
Reviewed By Jason H (Eolia, MO) Reviewed for a
GMC Yukon XL
—4/10/2012 7:44 PM
Was really hoping for better results and had to call customer service to install program, so it is not just plug and play :(