Which csl airbox to buy?

[usdmej]

You can't - - even if you found a place that will turn a blind eye to the visual, the CSL MAP DME cannot communicate w/ state emissions computers. Have to keep the stock bits and just swap out every two years.

this is a very grey area still to this day. guys with actual coding knowledge say it's possible and Kassel offers a solution. . . . . it took a lot of back and forths with them, consultations with other coders, and an accommodating smog tech, but I was able to get a california smog computer to communicate with my car.

i'm not looking forward to the next smog check . . . .

[2004LSB]

this is a very grey area still to this day. guys with actual coding knowledge say it's possible and Kassel offers a solution. . . . . it took a lot of back and forths with them, consultations with other coders, and an accommodating smog tech, but I was able to get a california smog computer to communicate with my car.

i'm not looking forward to the next smog check . . . .

Good to know - thanks for the heads up👍

Since the airbox swap is pretty easy and doesn't take too long, I think its just easier to swap it back to stock for the inspection. Even w/ the "BMW M Power" sticker on the box, I think many smog techs are leery with even moving forward with the inspection since the excessive carbon fiber in the engine bay just screams aftermarket all over the place.

[skristedja]

this is a very grey area still to this day. guys with actual coding knowledge say it's possible and Kassel offers a solution. . . . . it took a lot of back and forths with them, consultations with other coders, and an accommodating smog tech, but I was able to get a california smog computer to communicate with my car.

i'm not looking forward to the next smog check . . . .

Any insight as to what the solution was? I think I remember reading that one potential solution was just a matter of finding the euro OBD code and replacing it with the US OBD code. It would be interesting to see if someone has successfully done this and where they found the code in the binaries.

[heinzboehmer]

Any insight as to what the solution was? I think I remember reading that one potential solution was just a matter of finding the euro OBD code and replacing it with the US OBD code. It would be interesting to see if someone has successfully done this and where they found the code in the binaries.

Unfortunately it's not that simple.

https://nam3forum.com/forums/forum/s...o-csl-software

[Cubieman]

So glad Nebraska doesn't have inspections. But on the downside...there's not much Euro love or really any good indy shops here either.

[usdmej]

Any insight as to what the solution was? .

Unfortunately it's not that simple.

https://nam3forum.com/forums/forum/s...o-csl-software

my personal experience doesn't provide any concrete evidence as to what works or not, which is why i consider it a grey area still
I sent my ECU to Kassel for their solution, when i got it back my car wouldn't even turn over so i sent it back to them again to change who knows what (communication was great with them and they were always willing and able to help).
when i got the ECU back the car started up, but still wouldn't read on California smog equipment.
I talked to a former forum member and he said state computers vary and sometimes it's as simple as turning the car off and on again while it's still hooked up to the computer
went back, asked the smog tech to try that and it worked would it have worked without any of the Kassel changes? can't say for sure

[heinzboehmer]

my personal experience doesn't provide any concrete evidence as to what works or not, which is why i consider it a grey area still
I sent my ECU to Kassel for their solution, when i got it back my car wouldn't even turn over so i sent it back to them again to change who knows what (communication was great with them and they were always willing and able to help).
when i got the ECU back the car started up, but still wouldn't read on California smog equipment.
I talked to a former forum member and he said state computers vary and sometimes it's as simple as turning the car off and on again while it's still hooked up to the computer
went back, asked the smog tech to try that and it worked would it have worked without any of the Kassel changes? can't say for sure

As far as I know, Kassel does a BDM flash of the CSL software (so basically creates an ECU that's identical to a CSL one in terms of software) and then applies their canned tune on top of that. I don't think they've ported the emissions fix over to their binaries (this belief is further reinforced by the fact that your car couldn't communicate with the state computers on the first try). I'm assuming your car wouldn't turn over because of the EWS and they just disabled it when you sent it back in.

So basically, if you're running any sort of CSL based software (i.e. running a MAP sensor), your car might be able to communicate with the computer or it might not. Even the same computer can work sometimes and not others. If you're running stock software with an alpha-n tune (no MAP), this should not be a problem, as the software in your DME will have the emissions fix.

[usdmej]

FWIW, they did not touch anything tune/engine parameter related. I told them i had a tune from Paul Claude and had no interest in modifying how my car ran. The changes they said they'd make to me were strictly to get the car to communicate with Ca smog.

[skristedja]

FWIW, they did not touch anything tune/engine parameter related. I told them i had a tune from Paul Claude and had no interest in modifying how my car ran. The changes they said they'd make to me were strictly to get the car to communicate with Ca smog.

So if I understand this right, you didn't have Kassel perform the MSS54 -> HP/CSL conversion, you just had them do the emissions update? Is your tune MAP-based or alpha-N?

[usdmej]

yep, had a running MAP based CSL setup that wouldn't read on cali smog computers prior to trying their smog solution. sorry for the confusion

[heinzboehmer]

yep, had a running MAP based CSL setup that wouldn't read on cali smog computers prior to trying their smog solution. sorry for the confusion

Oh interesting, I guess I misunderstood your previous post a bit. So whatever it is they did was specifically done so that your DME would work with the state computers? Did they say anything more about that? Would be interesting to take a look at the software that your car is running (although I have no idea about the legality of sharing these kinds of things).

[usdmej]

So whatever it is they did was specifically done so that your DME would work with the state computers? Did they say anything more about that?

that was what i specifically asked for, they were aware of PC tuning, and had no interest in meddling with his work.

i would say the results are confounding because the ECU initially didn't read after i was up and running after their work. i went back to the smog station after getting the tip about turning the car off and on again while plugged in and then it worked. i never tried that method pre-Kassel ECU mod so we'll never know what actually did the trick. i guess i could experiment by switching back and forth but frankly i've spent enough of my damn time trying to get the car smogged

[heinzboehmer]

Well this has me intrigued. Just reached out to them asking about this. We'll see if I get a response.

[Diron05@aol.com]

I have an m3 with the karbonius airbox and one with the Geoff Steele airbox. They essentially sound the same to me however the Geoff Steele box might sound ever so slightly louder. I like the appearance of the karbonius box slightly more however it was also more expensive.

[Drewrivera]

Off topic in no one crazy about the gruppe m ram intake anymore? Does it not bring out power like the csl?