Reviewed By Martin P (McAllen, TX) Reviewed for a 1994 GMC C/K 1500 —1/3/2011 8:45 AM
its an awsome sound.when it starts to whistle you just dont want it to stop well thats just from my point of view.
Reviewed By Joseph N (CLINTON, ME) Reviewed for a 2011 GMC Sierra —9/21/2016 8:17 PM
As far as I can tell, it does what it's meant to. I put this on before I put on my Spectre cold air intake to test it and noticed an immediate throttle difference, definitely added some power. And it hasn't messed with my mass air flow sensor. Don't buy this to save gas though, I haven't noticed much of a difference. Wasn't too hard to install either, just make sure you have a socket set and a pair of vice grips at least and you'll be fine.