Reviewed By Robert M (RENTON, WA)
—10/25/2015 9:34 AM
Totally pleased! Easy to install on my 07 gmc duramax lbz. Went to 18.4 mpg highway with stock exhaust.
Reviewed By Donald H (Evergreen, CO) Reviewed for a
—10/13/2015 9:06 PM
Easy install 5 minutes. Will monitor results in power and economy