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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Wed, Feb-22-2017, 04:46:44 AM   #1
speeeding
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Default Intake elbows and filter - what's your favorite?

When I bought my M3, it came with a K&N intake. It sounds nice, but after reading some posts, it seems like a stock intake + an aftermarket elbow might perform better. So, among all the aftermarket brands like aFe, Rogue, Bimmerworld, and Macht Schnell, is there one that stands out from the rest, or are they all the same?
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Old Wed, Feb-22-2017, 06:43:46 AM   #2
yosshaa
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Default Re: Intake elbows and filter - what's your favorite?

I found a post awhile back stating ms outperformed similar designs in net hp


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Old Wed, Feb-22-2017, 07:10:28 AM   #3
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Default Re: Intake elbows and filter - what's your favorite?

I had a Bimmerworld elbow for years without issue.
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Old Wed, Feb-22-2017, 08:17:32 AM   #4
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Default Re: Intake elbows and filter - what's your favorite?

IF you're planning on doing cams later and not upgrade ur airbox to a csl one, keep the k&n system, just replace the filter with an AFE dry one and do a proper heatshield coz the k&N one sucks. If you don't plan on cams, keep the stock box, remove the k&n system, add an AFE plastic elbow, since unlike the silicone ones, it doesn't create a ridge where the box meets the elbow. A drop in will net you ZERO GAINS , literally zero. Even if you have cams, it simply doesn't flow more. I know because I'm a dyno rat. Just use paper . I was at 335 whp with the paper filter.
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Custom exhaust thread and dyno http://m3forum.net/m3forum/showthread.php?t=569086
Cams thread and dyno http://m3forum.net/m3forum/showthread.php?t=554439
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Old Wed, Feb-22-2017, 02:53:44 PM   #5
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Default Re: Intake elbows and filter - what's your favorite?

I have a Dinan CAI and the Bimmerworld elbow. Works great. If you are looking to do the CSL Intake manifold just be prepared to spend a fortune and make sure it is done right, or you will lose HP and the car will run like shizz
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Old Wed, Feb-22-2017, 02:58:54 PM   #6
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Default Re: Intake elbows and filter - what's your favorite?

^Probably the best setup short of full CSL airbox/kit.
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Old Wed, Feb-22-2017, 03:34:16 PM   #7
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Default Re: Intake elbows and filter - what's your favorite?

Quote:
Originally Posted by HassanEido View Post
Add an AFE plastic elbow, since unlike the silicone ones, it doesn't create a ridge where the box meets the elbow.
I'm currently running an Evolve Eventuri intake and I absolutely LOVE it. Much improved throttle response and more torque that I can feel. However this point got me thinking. I'm using a Macht Schnell silicon elbow and am wondering whether I should swap out for the AFE plastic elbow that doesn't create a ridge. I would love it if somebody 3D printed a ring I could place around my manifold that would smooth out the transition so that I didn't have to buy another elbow but do you think the ridge actually makes enough of a difference to warrant replacing my elbow with another $90 piece?
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Old Wed, Feb-22-2017, 03:58:53 PM   #8
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Default Re: Intake elbows and filter - what's your favorite?

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Originally Posted by WuBai View Post
I'm currently running an Evolve Eventuri intake and I absolutely LOVE it. Much improved throttle response and more torque that I can feel. However this point got me thinking. I'm using a Macht Schnell silicon elbow and am wondering whether I should swap out for the AFE plastic elbow that doesn't create a ridge. I would love it if somebody 3D printed a ring I could place around my manifold that would smooth out the transition so that I didn't have to buy another elbow but do you think the ridge actually makes enough of a difference to warrant replacing my elbow with another $90 piece?
I too have an eventuri and the stock elbow always gives me back a little umph after running an aftermarket elbow. It did it too before the eventuri with a stock box.

My research found and my own testing confirmed that while an aftermarket elbow might net you a horsepower at 8k, you lose some midrange.

This car has plenty of top end, so I went back to a paper filter and stock elbow (before getting the eventuri) and it was the best for middrange and driveability - def better for a streetcar.

If your car lives between 5 and 8k, do the elbow and scoops by all means.
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Old Wed, Feb-22-2017, 05:20:06 PM   #9
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Default Re: Intake elbows and filter - what's your favorite?

Quote:
Originally Posted by TboneM3 View Post
I too have an eventuri and the stock elbow always gives me back a little umph after running an aftermarket elbow. It did it too before the eventuri with a stock box.

My research found and my own testing confirmed that while an aftermarket elbow might net you a horsepower at 8k, you lose some midrange.

This car has plenty of top end, so I went back to a paper filter and stock elbow (before getting the eventuri) and it was the best for middrange and driveability - def better for a streetcar.

If your car lives between 5 and 8k, do the elbow and scoops by all means.
I have a hard time justifying the scoops since there's really no way to quantify the results.
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Old Wed, Feb-22-2017, 05:58:17 PM   #10
HassanEido
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Default Re: Intake elbows and filter - what's your favorite?

Quote:
Originally Posted by TboneM3 View Post
I too have an eventuri and the stock elbow always gives me back a little umph after running an aftermarket elbow. It did it too before the eventuri with a stock box.

My research found and my own testing confirmed that while an aftermarket elbow might net you a horsepower at 8k, you lose some midrange.

This car has plenty of top end, so I went back to a paper filter and stock elbow (before getting the eventuri) and it was the best for middrange and driveability - def better for a streetcar.

If your car lives between 5 and 8k, do the elbow and scoops by all means.
Is that subjective butt dyno feedback? my car has an AFE elbow and it and has a flat torque curve
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Mods:
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-SSV2 catless headers, Custom 2.5" dual sec1, Custom sec2 2.5" dual with e9xM X pipe, SuperSprint Race inspired custom section 3..
-Cat Cams 280 272.
-Custom dyno tune
-Tms pulleys and electric fan conversion
364.1 whp 287.8 wtq

Custom exhaust thread and dyno http://m3forum.net/m3forum/showthread.php?t=569086
Cams thread and dyno http://m3forum.net/m3forum/showthread.php?t=554439
Custom cf airbox thread http://m3forum.net/m3forum/showthread.php?t=595180
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Discussing Intake elbows and filter - what's your favorite? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)