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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 Fri, Jan-10-2020, 08:38:24 PM   #1
usdmej
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Default PSA: know what you're getting into before buying a CSL style intake

this thread is meant to simply inform and is not intended to sway anybody one way or the other on getting a carbon airbox


with the upcoming Turner airbox about to release and the interest that it's churned up, it seems like a lot of people are assuming this will be a simple bolt on intake but that for sure is not the case. it's important to know that there's a significant investment in time and money required beyond simply buying the airbox. At the bare minimum i would suggest you do the following if you're planning to go down this route.


- get familiar with what is actually involved in running a CSL style airbox. there's a fantastic sticky on this
http://www.m3forum.net/m3forum/showthread.php?t=494616

there are a multitude of items (sensors, ducting, wiring, tuning) that will ramp up the costs beyond the initial airbox buy in price. Back in the day these extras weren't so significant when the buy in for just the airbox was $3k-$6k but if your starting price is in the $1k range, you're looking at a significant extra cost to complete your setup (more so if you can't DIY)

- if you're not comfortable doing it yourself. find a shop and verify that they're willing to install it for you and work with you through the potential hiccups. this is not always the case even with reputable shops.

- pick a tuner and make sure you're comfortable working with them. you might think there are a lot of companies that do this based on reading this forum, but there really aren't. some tuners that are mentioned quite often here actually have little to no interest or time to work with you to get your car running right

- realize that even with a tune there are a large number of people that have had problems getting their car running properly. this thread has some good reading on that topic.

http://www.m3forum.net/m3forum/showthread.php?t=536818&


- have a plan when/if something goes wrong. note in the thread previously mentioned that it's still not totally understood why people are having driveability issues with their cars. part of this has to do with variation car to car. For example, a stock E46 M3 seems to run perfectly fine with a failed fuel injector or two, this isn't the case when you switch to a CSL tune. outside of the condition of your car to begin with, if a shop has installed your airbox but you got your tune from another company, there is a chance that one is going to blame the other if you can't get your car running right.




it's easy to be drawn to and romanticize about the things we do to our cars and surely this can cloud our judgement as to whether or not it's all worth it. Hopefully this thread will help clear some of the air around this particular mod.
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Old Fri, Jan-10-2020, 09:32:07 PM   #2
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Default Re: PSA: know what you're getting into before buying a CSL style intake

Q: Will I pass smog?
A: No
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Evolve-R Alpha N Evolve CF CSL Airbox Eventuri Scoop Supersprint V1 stepped 2.5" SS V1 2.5" sect 1 OE sect 2 SCZA 2.5" sect 3 Besian RE pulleys/fan delete CSL battery

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OE CSL trunk Cobra Nogaros + BK + manual OE bases TMS black pedals Sportline 8S 18"x 8.5/9.5" MPSS 245/275 APEX 75mm Studs Brembo 996 4 pot 345mm CSL + Textar & 328mm CSL + ATE ZHP "712" rack

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Old Fri, Jan-10-2020, 09:44:46 PM   #3
usdmej
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Default Re: PSA: know what you're getting into before buying a CSL style intake

i didn't want to wade into emissions compliance because smog requirements differ state to state and even county to county

but yes, California smog stations are exceptionally strict with this platform and lets just leave it at that
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Old Fri, Jan-10-2020, 09:53:36 PM   #4
cozmo kraemer
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Default Re: PSA: know what you're getting into before buying a CSL style intake

Quote:
Originally Posted by TboneM3 View Post
Q: Will I pass smog?
A: No
Mine passes the OBD readiness check for AZ emissions with an HP DME Converted to CSL software and a TTFS tune.

but... YMMV
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Old Fri, Jan-10-2020, 09:58:05 PM   #5
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Default Re: PSA: know what you're getting into before buying a CSL style intake

Debbie Downer

J/K - Good PSA
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Old Fri, Jan-10-2020, 10:26:23 PM   #6
Steve M3
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Default Re: PSA: know what you're getting into before buying a CSL style intake

There are roughly $500 of additional parts needed to get it going, less if you get creative and/or don't have a SMG.

Without the flap, it's not that complicated to set everything up, but I guess it depends on your comfort level and abilities.
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Old Fri, Jan-10-2020, 10:43:11 PM   #7
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Default Re: PSA: know what you're getting into before buying a CSL style intake

Quote:
Originally Posted by cozmo kraemer View Post
Mine passes the OBD readiness check for AZ emissions with an HP DME Converted to CSL software and a TTFS tune.

but... YMMV
Smog in CA is also a visual check which this obviously fails.

When they scanned your car, which monitors were ready vs not ready?
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Old Fri, Jan-10-2020, 10:45:36 PM   #8
usdmej
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Default Re: PSA: know what you're getting into before buying a CSL style intake

Quote:
Originally Posted by Steve M3 View Post
There are roughly $500 of additional parts needed to get it going, less if you get creative and/or don't have a SMG.

this is not even counting the cost of a tune mind you, the price of which can vary wildly, and is required to make the airbox work.
also, food for thought, if this airbox is going to cost in the $1000 range, you instantly have to add 10% of that cost towards buying an OE CSL air filter


again, i dont want there to be any answers in this thread, just enough information for people to be able to make their own informed decisions.
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Old Fri, Jan-10-2020, 10:54:12 PM   #9
Steve M3
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Default Re: PSA: know what you're getting into before buying a CSL style intake

Quote:
Originally Posted by usdmej View Post
this is not even counting the cost of a tune mind you, the price of which can vary wildly, and is required to make the airbox work.
also, food for thought, if this airbox is going to cost in the $1000 range, you instantly have to add 10% of that cost towards buying an OE CSL air filter


again, i dont want there to be any answers in this thread, just enough information for people to be able to make their own informed decisions.

Show me on the doll what the CSL airbox did to you...

I used mssflasher and flashed the modified boot sector tune that is readily available, but yes, a dyno tune is recommended to take full advantage of the box as the OE software is setup for euro exhaust and csl cams.
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Old Fri, Jan-10-2020, 10:59:25 PM   #10
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Default Re: PSA: know what you're getting into before buying a CSL style intake

Quote:
Originally Posted by Drewster View Post
Smog in CA is also a visual check which this obviously fails.

When they scanned your car, which monitors were ready vs not ready?
Yeah getting my car tested this year was such a PITA. First time I went in I think 3 or 4 of my monitors weren't ready due to the original tune that I had..

Luckily the guys at Evolve were super cool about sending me a new one that readied all but 1.. I believe it was the o2s...
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Discussing PSA: know what you're getting into before buying a CSL style intake 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)