Reviewed By Davion G (CHANNELVIEW, TX) Reviewed for a 2009 GMC Sierra —3/26/2015 8:24 PM
Pretty easy install no issues. Noticeable hp gain with 5.3 vortec. Good buy.
Reviewed By Jimmy F (Bowie, TX) Reviewed for a 2005 GMC Sierra —3/19/2015 3:54 AM
installation took half hour.no whistle sound that others have reported.160000 miles on 5.3 motor.sounds great,more power and getting an extra 1 to 1 and half mph gain.great purchase,well worth the money