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  1. Chirp When Stepping on Gas Pedal

    General E46 Forum
    Hey guys, I have an '03 325it and I'm hearing a chirping type sound when I step on the gas. Sounds like the chirp is coming from around the intake/intake manifold but I can't locate it. Only chirps when I first hit the accelerator but constant acceleration will not cause any sound. The first...
  2. WANT TO BUY: E46 m3 Dinan High Flow Air Mass Meter Intake

    Engine & Performance
    I realize how rare this part is but doesn't hurt to ask! Dinan Part #D763-1600A looking for the complete set Used or new
  3. FS: CT: E46 M3 Injen Short Ram Intake

    Engine & Performance
    Removed from my 01 M3, was installed May 2018 and removed it January 2019 when I started getting the car ready to sell. See wear in pictures, elbow has a mark from rubbing against the car and filter has some wear from tight tolerance in engine bay. Injen air filters do not require oil...
  4. (SOLD) FS: OE CSL Air Rail *Socal*

    Engine & Performance
    Sorry, I missed a day lol Been busy. I'm procrastinating right now, so about to post some. To keep you guys in the loop… Last OE CSL part. I know…finally right? Lol It's the OE CSL Air Rail. You want to be using this with the Map sensor I just posted. Brand new, never installed, only opened...
  5. FS: OE CSL Map Sensor *Socal*

    Engine & Performance
    Sorry, I missed a day lol Been busy. I'm procrastinating right now, so about to post some. To keep you guys in the loop… Next we have OE CSL Map Sensor. This is the one that went NLA. Brand new, never installed, only opened to take pictures. Asking $500 shipped.
  6. FS: OE CSL Intake Flap/Snorkel w/Air intake hoses *Socal*

    Engine & Performance
    Well if you haven't kept up from my other FS posts. Today, I guess I'm going with Engine/Air intake related items. Starting off with this set of hoses that connect from the CSL bumper to the intake. Selling as a set. Includes CSL Intake Flap/Snorkel Includes: OE CSL Airbox Air Shutoff Valve...
  7. Does my intake boot need replacing?

    General E46 Forum
    Hi all, Was just looking over the engine bay (no car problems that I can tell, runs nice!) but I’ve heard cracked intake boots are common so looked at mine while I was poking about. To me it looks pretty damn cracked. But like I said, no issues. Common to look like this or is it on its way out...
  8. Complex Problem - Engine Surge Upper Gears Only

    General E46 Forum
    Hello Everyone, I have a complex problem that I would love help narrowing down. Thank you in advance to any contributors. I don't drive my e46 often and so this problem has been dragging on for some time. I love this car and want to keep enjoying it. Last January I brought the car in to the...
  9. Hesitation between 2500-3000 RPM in Upper Gears - Manual

    General E46 Forum
    I have been trying to diagnose and remedy this problem for several months, and now I need the to call on the collective knowledge of the group. It all began when SES illuminated one morning as I was on my way to dealer for routine maintenance. The car was behaving normally on the roughly one...
  10. Whistling under acceleration between 1500-2000 RPM

    General E46 Forum
    Hello everyone, I have recently been experiencing a whistling occurring somewhere between 1500-2000 RPM. It only presents its self under acceleration and whilst moving. Below or above this rev band, no sound is heard. While the car is parked and revved no sound is present. Otherwise the car...
  11. FS: Mishimoto CAI for 323i, 325i, or 328i (New)

    Engine & Performance
    Selling a new-in-box, never-installed Cold Air Intake kit for 1999-2006 BMW 323i, 325i, and 328i. My wife bought the kit as a gift not realizing it didn't fit my M3, but my loss can be your gain to the tune of about a 5hp bump and some sweet sweet inline-6 intake noise. Retail price $225, asking...
  12. Cold Air Intake 323i

    Driveline, Engine & DME Tuning
    Is the air intake on the 323i more efficient then replacing it with a 3" pipe and a high performance filter? It looks like sucking the air out of a huge box instead of a pipe seems worse or am I missing something. Will it improve my performance on a 2000? This morning the ignition cranked for...
  13. E46 330 Dinan High Flow Intake, Used SOLD

    Engine & Performance
    Used Dinan High Flow Intake for 330's E46 Comes with all hardware and filter. $200 shipped North OC, local pickup.
  14. M54B22 intake manifold swap?

    General E46 Forum
    Hey guys. New to the forum, not new to BMW's. I have a 320i Touring with the 2.2L motor. I have the opportunity to grab the full intake off of a 325ci. So I'm wondering if there are any sizes differences in the 2 manifolds and/or throttle bodies? If there are, i'm definitely not expecting...
  15. E46 330 No Downtime AFE Intake Kit with Extra Filter

    Engine & Performance
    See my other thread here for pictures and details. $270 shipped. $250 local pickup. This system (without extra filter or recharge kit, or pre-filter) retails now for $449!!! Fits E46 330's only due to the larger MAF sensor. PM me if interested or post up in this thread. I accept Paypal...
  16. 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...
  17. Help: Whistling and Light Idle Hunting

    General E46 Forum
    So, a while back I noticed that I was getting a certain whine/whistle from my m3's engine bay while driving. The whistle only appears when using light throttle at speed, maintaining speed, or when going downhill. The whistle generally starts around 2500rpm and gets drowned out by the engine...
  18. Afe Intake for 323 and 328

    Engine & Performance
    I have an Afe intake FS/FT. Im pretty sure that it is for a 323 or 328 because it does not fit my 02 330i properly. I am asking $150 for the intake because I am just trying to get my money back out of it. Let me know what you have. Here is the craigslist add for it. Thanks for your time ...
  19. Weird Eventuri Intake Issue

    ///M3 Forum
    A couple weeks ago, I got an Eventuri intake and finally got around to installing it yesterday afternoon. The directions are very specific about how to install the MAF housing, but there's one issue: if I install the MAF housing the way their directions say to (and the way it came shipped from...
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