K & N Cold air intake, Does it work as advertised?

Discussion in 'Engine & Drivetrain' started by Ruby Roo, May 15, 2018.

  1. Ruby Roo

    Ruby Roo TYF Newbie

    Posts:
    12
    Likes Received:
    0
    Joined:
    Sep 16, 2017
    Location:
    High Desert
    Name:
    Buddy
    I have a 2017 GMC Yukon Denali XL, 6.2L engine. I put the K&N cold air intake on my 2008 GMC Sierra and noticed a big difference and love it, both gas mileage and power. My question is with the larger intake on the Yukon XL will the K&N system really make any difference?
     
  2. chicagofan00

    chicagofan00 Full Access Member

    Posts:
    668
    Likes Received:
    261
    Joined:
    Mar 26, 2015
    Location:
    Arizona
    Name:
    Adam
    I put it on my Tahoe and the only difference I truly noticed was the increased growl of the engine under acceleration. Otherwise I saw no tangible MPG increase and the butt in the seat dyno didn’t really notice much.

    There is a thread in the performance section where Black Bear did a performance comparison of a lot of the common CAI for these trucks. Might want to check that out.
     
  3. yesac

    yesac TYF Newbie

    Posts:
    26
    Likes Received:
    8
    Joined:
    Sep 9, 2017
    Name:
    Casey
    It makes it pretty noisy, a little too much for my taste. I have the stainless steel one. Probably going to remove it and go back to factory.
     
  4. sumo

    sumo dn ʇǝƃ ʇuɐɔ & llǝɟ ı

    Age:
    37
    Posts:
    5,550
    Likes Received:
    849
    Joined:
    May 21, 2010
    Location:
    rhode island
    Name:
    ian
    no. Not enough for noticeable gains in hp or mpg by itself. You may feel it be slightly more responsive. With a tune it would make a difference.
     

Share This Page