Reviewed By Matthew T (Corona, CA) Reviewed for a 2007 Chevy Colorado —1/25/2008 1:33 PM
i would recommend this to customers looking for an extra edge. i have noticed more performance from this... esp mid to top. not yet sure about mpg. but... its def worth getting, and theres no annoying whisstle in the cab. but u can hear it on the outside... sounds cool!!