Reviewed By Chris B (ZACHARY, LA) Reviewed for a 2011 GMC Sierra —12/18/2014 9:17 AM
A must have for my Duramax. Really improved the bottom end. Auto anything had a sale and was the cheapest I could find. I went with the metal bc it just looks 10x better. I went with an outerwears prefilter as well. I gave it a 4 out of 5 only bc they're still so expensive.