Reviewed By George S (SAINT PAUL, MN) Reviewed for a 2011 Chevy Avalanche —5/2/2016 11:26 PM
Easy to install but be sure to follow instruction. (Pull proper fuses). Disconnect (8-4 cylinder) drop out. You will have a smother , quieter and more responsive engine. There are also two options to try the premium option and the regular option I have yet to try their premium option but I am very satisfied with the regular option. For my money it was well worth it.