The Random E46/ZHP Question Thread

[Sockethead]

I didn't see any benefit from my Dinan intake

[BMWCurves]

Not sure if this is the right thread but I can't find anything similar and didn't want to just create an entire new one.
I'm sure someone has already done it, but what can I expect, when speaking of a different feel driving the car, If I add a cold air intake to my 330ci? Is it worth it? Or just nonsense? Thanks in advance!

General consensus is that the stock intake is pretty good and the intake itself is not a major choke point of the M54 i.e. swapping it out for something else won't have much effect beyond adding 1 or 2 hp if you're lucky. If you want more power look toward headers, underdrive pulleys, exhaust, forced induction, etc, but that's another conversation.

I have the BMW Performance intake which I believe was rated to 3 hp gain at 6,000 RPM. That's really not enough to notice. Subjectively I might feel a tiny bit more power at the top end but if it was there, I've gotten used to it at this point.

The chief reason people buy them for our cars is to change the intake noise.

[holyc0w]

I looked for some dyno results for intakes

BMW Performance intake:
http://www.e46fanatics.com/forum/sho...d.php?t=507315

Jim Conforti intake:
http://forum.e46fanatics.com/showthread.php?t=91237

AFE intake:
http://forum.e46fanatics.com/showthread.php?t=642879

Mishimoto intake with a car using aftermarket headers:
https://engineering.mishimoto.com/20...-dyno-results/

I guess the good thing is that none of them seemed to decrease performance. There will be a bunch of variables that probably makes these not so comparable. The Conforti intake one is interesting with a significant increase in torque. I wonder if that's repeatable or perhaps decreases once the computer adjusts to the new intake.

[sillieidiot]

Not sure if this is the right thread but I can't find anything similar and didn't want to just create an entire new one.
I'm sure someone has already done it, but what can I expect, when speaking of a different feel driving the car, If I add a cold air intake to my 330ci? Is it worth it? Or just nonsense? Thanks in advance!

I don't think it's worth it. It's really just for the sound IMO. If that's all you're after then yeah go for it. I'd rather spend the money on like sways or something.

[JAIm255]

Thanks for all your responses guys! I don't think it's something I'd be interested in. The car sounds amazing stock anyway, was looking for more of an increase in power if anything. Again, I appreciate it! All of your answers definitely helped; brought me from unsure to sure I don't want it.

[az3579]

I don't think it's something I'd be interested in. The car sounds amazing stock anyway, was looking for more of an increase in power if anything.

Funny you say that - I'm in despair when I have to put my stock intake back in because the car doesn't sound good enough to me with the stock one. lol

[Prestovie]

This has probably been brought up hundreds of times(so apologies in advance) but...
3rd and 4th gear, why so much drone?? Anybody know of any DIY fixes for this?
I would explain more about it but everyone pretty much already knows what I'm talking about
Thanks!

[az3579]

This has probably been brought up hundreds of times(so apologies in advance) but...
3rd and 4th gear, why so much drone?? Anybody know of any DIY fixes for this?
I would explain more about it but everyone pretty much already knows what I'm talking about
Thanks!

No idea what you're talking about. Never had drone with the stock exhaust and definitely no drone with the UUC.
Do you have an aftermarket exhaust? That's the only way you'd have drone.

[holyc0w]

I'm not sure either. Too low in the RPM range?

[san]

+1 don't think I've ever experienced it, with stock or corsa exhaust...


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