Reviewed By John S (Port Richey, FL) Reviewed for a 2013 Chevy Silverado —5/20/2015 3:09 AM
I have used them on all my cars and trucks for the last 15 years and wouldn't be without one on my vehicles.
Reviewed By David S (Coventry, RI) Reviewed for a 2013 Chevy Silverado —3/19/2015 3:04 AM
Installed on my 2013 3500HD Dually with 6.6 Duramax. Took a little over an hour to install but that was taking my time and being meticulous. The directions were a little unclear at times when it read "install with supplied hardware" and all you had was a bag of bolts and washers. A couple of rubber grommets were said to be included but were not there, however, the OE grommets were removed from the old unit and fit just fine. A definite increase in response, Sound and MPG have not changed.