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K&N 77 Series Metal Intake Kit Part #77-3077KP Customer Reviews
Reviewed by Chris B (ZACHARY, LA) Reviewed for a 2011 GMC Sierra — Dec 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.
Reviewed by Robert H (Selkirk, NY) Reviewed for a 2015 GMC Sierra — May 22, 2014 5:17 AM
Took a little longer to put in than was noted, but over all no problems. Notice the power on the Highway for sure. About a mile more per gallon on the big diesel. Would recommend to anyone.
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