K&N for 02 GSX-R750
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Thread: K&N for 02 GSX-R750

  1. #1

    K&N for 02 GSX-R750

    so i put one of those fuckers in today.. and i have a feeling that the stock filter lets more air through than the K&N... what should i do? Is there a place where i can dyno my bike for free/cheap?


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  3. #2
    V Lister Array BLADERUNNER 954's Avatar
    Join Date
    Feb 2004
    your girlfriend
    tomorrow at rms they are having dyno days again

  4. #3
    no brand loyalty..... Array 01gixxerjim's Avatar
    Join Date
    Oct 2002
    I like GSX-R's
    yes they say the K&N has negative effects on the Gixxers. very minor mind you, it is reusable so thats the benefit.
    Another Day...Another Project...

  5. #4
    Gixxers dont like K&N filters much....do you have a Power Commander??? IF not you may need one one if you are modifying the air fuel mixture...a simple slip on can lean a bikes mixture...worse if you use a K&N filter...the stock filter is 50 bucks ..so the K&N is a bargain...

  6. #5
    So whats the deal with f4i's? I have a slip-on yoshi and want to get a k&n is this all bad for my bike or will it slow it down?

  7. #6
    Moderator Array TeeTee's Avatar
    Join Date
    Feb 2002
    Out to pasture in the 'Wack
    04 Kawi Z1000,
    In the past 4 or 5 years the stock air filters have gotten a LOT better to the point that a K&N is not a mod that'll deliver a definite performance increase. At this point they are running on momentum. Or in the rare case where the stock filter is paper element the K&N is a bonus just due to the ability to clean and reuse it.

    On the 9R the K&N created idle and low throttle problems with my bike. Dyno testing by a couple of other guys showed that the K&N did not increase power at all even on a modded bike but it did smooth a few little dips around the peak power RPM so some of them were using it for that. I went back to stock since I mostly ride in the real world and the idle and low rpm cruise was more important to me.

    Other bikes may vary a little on this but generallly I'd say that if you have a thin element air filter made from foam and fuzz that is oiled then the K&N money would be best spent on something else. For anyone with stock paper elements then I'd get a K&N for the lifespan.

    Raph, it's possible that you ARE letting in more air depending on your stocker. Can you tell if it seems lean or does it seem richer now? Symptoms?
    A backyard mechanic without a service manual is just like a hooker without a lamp pole.... they are both in the dark.

  8. #7
    Not much change... i have a feeling that it's not reving up as fast as before but it might be in my head... when i put the filters side by side, im pretty sure the stock let more air through. its a lot thinner than k&n, and it isn't oily, which i think has a lot to do with it... since air filters last 10, 15 thousand k, im going back to stock..

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