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  1. Should I dump my K&N air filter?

    General E46 Forum
    The original owner of the 330i I bought last year put a K&N air filter on it. It needs a cleaning and oiling which makes me nervous because I've heard the oil can get on the MAF sensor and cause problems. And I've heard that not using enough oil can cause more dirt to get past it. I'm going...
  2. E46 M3 Stalling at Highway Speeds

    Driveline, Engine & DME Tuning
    I have found a 2002 manual BMW M3 for sale close to me for $7000 Canadian with 220000km. The car is in mint condition aside from one issue. The car stalls when put into neutral at highway speeds. The owner has not provided any other details other than a full walk around of the car idling for 5...
  3. E46 323 Authentic GruppeM Air Intake

    Engine & Performance
    I have a used authentic air intake for sale. Serial: 02-0106. The body is made of carbon kevlar and there are some damages to the rubber trim. All hardware is included (minus the bracket arm). I had no issues installing without the bracket arm. This will fit E46-320/323/325/328 (coupe/sedan). I...
  4. K&N CAI Rich LTFT Problem Resolved

    General E46 Forum
    Just wanted to post a bit of information for any of you that have been having negative LTFT issues. I purchased a CAI 2 months ago shortly after buying my 2002 330ci. Since then, I have been dealing with P0172 and P0175 error codes. After weeks of trying to trace down potential causes, like MAF...
  5. K&N Cone Filter Causing MAF Errors? (M52TUB25)

    General E46 Forum
    Early this summer, I fitted a K&N cone filter directly onto my MAF tube as a replacement for the airbox altogether. It sounded awesome and ran great for a while, but then I installed an electric exhaust cutout and things fell apart. In addition to a blow ignition coil (which I swear must have...
  6. K&n 57-1003 fipk

    ///M3 Forum
    I installed the K&N 57 series fuel injection performance kit, and ever since I installed it I seem to get a slight flutter when I take my foot off the gas under load. It's more noticeable at higher speeds. I bought this used and it had low miles - as far as I'm aware it's stock aside from the...
  7. FS:OEM Air Box 330/330ci with K&N

    Engine & Performance
    FS:OEM Air Box 330/330ci with K&N - SOLD! Selling the Air Box out of my 330ci. Includes a drop in K&N air filter. Will fit any E46 330/330ci 01-06. SOLD!
  8. K&N 57-series Cold Air Intake BMW 3-series (non-M)e46

    BC, AB, Saskatchewan, Manitoba
  9. 30% off all K&N Intakes

    Site Sponsor Specials and Sales
    Just as the title says 30% off all K&N intakes. Sale is for the next 3 days. Contact us: [email protected] 516-497-2056 call/text contact me directly also if youd like info in sig :thumbsup:
  10. WTB: Cold air or short ram INTAKE FOR ZHP

    Engine & Performance
    Looking for a decent cold air, or short intake for my 330i zhp AFE, K&N, ITg, bmw, etc.. Want to start with something good but not necessarily the best. Price is the determining factor because im in school. thanks. If you have something you want to let go of please PM me or text or call...
  11. :: ECS Tuning :: BMW E46 330 K&N Performance Intake|PRICE DROP|It Sucks: That's Good

    Sponsor Press Releases & New Product Announcements
    :: ECS Tuning :: BMW E46 330 K&N Performance Intake|PRICE DROP|It Sucks: That's Good If you've been holding back, waiting for a price drop on K&N, you're in luck--and out of excuses. Save 22% on a performance air intake filter system for E46 330. This is a complete install kit with hi-flow...
  12. How does everyone feel about a K&N air filter?

    General E46 Forum
    I'm debating getting one, but I'd like a second, third, fourth, and any other opinion before I make the purchase.
  13. FS: Stock air box + filter $110

    Engine & Performance
    I upgraded to K&N air intake so I no longer need this. 99 323i Stock air intake box complete assembly. 13711712409 Slightly used air filter. WIX brand. New intake hose ring. 13711720540 Suction tube. 13711438768...
  14. K&N Air Filter "MAF Myth" Videos

    General E46 Forum
    I have read many articles online about how some people think K&N air filters have a knack for killing the MAF in our cars. Some even have gone as far as to call them "Krap & Nasty". Today on youtube I stumbled across the K&N youtube channel and discovered an entire series of videos on their...
  15. Gruppe M rep carbon fiber intake, K&N Filter Cleaner, OE side mirror switch

    Engine & Performance
    All items still available, unless noted otherwise. Will ship at buyer's expense. 1. Gruppe M Intake -- AMAZING SOUND, especially at high revs, car takes off at 4k, used for approx 3000 miles, great condition! :woot: Price: SOLD 2. K&N Oil Filter Cleaner -- Unused, NIB. Price: $12 3...
  16. FS E46 Dinan Cold High Flow Air Intake / Cleaner

    Engine & Performance
    Used Dinan Cold Air intake... Just removed from my E46 Retail is $449 Also including K&N filter cleaner kit Parting out 323ci...
  17. e46 M3 K&N 57-1003 Cold Air Intake Kit

    Engine & Performance
    Hey guys, I have for sale my K&N CAI kit. Part number is 57-1003. It is was used for about 3-4 months last summer. I stored the car for the winter and when putting it back on the road decided to go back to stock. It probably has about 5,000 miles or so on it. I would recommend cleaning the...
  18. FS: K&N 57-1002 Intake

    Engine & Performance
    I'm selling my intake from my 325i. It has been used for 3 years. Info regarding the intake can be found on their site. It is missing a hose, letter B, from the instruction manual. 175 shipped obo.
  19. F/S: K&N Typhoon Intake E46 M3

    Engine & Performance
    $175 Shipped Maybe 5000 miles on the filter, its still pink and not dirty as you can see from the picture. This is very important to me as I agree no filter is lifetime, but this one is next to new. Also comes with the prefilter! Comes with all hardware needed.
  20. Trade K&N Intake for M3 Stock Intake

    General E46 Forum
    Looking to trade K&N and a little cash for stock intake. Please contact me at [email protected] or 503-310-7012 thanks Jesse