How often do you shop at JC Whitney.com?Once a Year
Well built, but minimal results
PostedApril 13, 2015
I put this on a 2014 Yukon XL. Installation was easy and the unit is well constructed; however, I am finding minimal to no improvement in vehicle performance. There MIGHT be a little more lower end power, but my gas mileage has not improved at all. I had CAIs on all of my prior vehicles and always enjoyed a 1-3 mpg increase upon switching out from the stock airbox. Unfortunately, not the case this time. I drive fairly conservatively and track every detail of my vehicle use... spreadsheet galore. The one negative comment I have is this CAI has the dreaded "whistle" when accelerating uphill. I never had with previous intakes. It's installed and I'll keep it, but not really giving me much benefit.
How often do you shop at JC Whitney.com?First Time
PostedFebruary 11, 2015
I put this on my 2002 GMC Sonoma sls extended cab 4x4. 4.3L It gave the truck more horse power and 2 1/2 to 3 more mpg. And pay close attention when installing the plenum on the throttle body, because the tabs on the plenum are very soft and break easy.