N55 Catless DP CEL Fix

[loesch]

Originally Posted by Venom

If you guys haven't found a catless solution. Try Wagner's N55 high-flow catted downpipe. He guarantees no CELs and the workmanship is quite impressive. I got to check out a model today and was thoroughly impressed. http://www.wagner-tuning.com/BMW-135...gine_p_64.html

I'm very interested to see back to back dyno results with this Wagner piece and a cat less version. If the difference isn't too great this would be a great solution.

[Venom]

Originally Posted by loesch

I'm very interested to see back to back dyno results with this Wagner piece and a cat less version. If the difference isn't too great this would be a great solution.

I don't know of a dyno (while it can be a good performance metric, it's not always a clear sign of what will give bigger power gains)

This is what I can say though, no CEL, no smell and the power gains should be roughly similar to a catless setup. Hit up Wagner for more info!

[Focusedintntions]

I don't see where he garuntee's no lights...right from the product page you linked us to:

"Made from 1.4301 (SS304) Stainless Steel 200cpi Catalytic Converter* 1:1 exchange to OEM Unit CAD designed *ECU may need to be coded to avoid engine management light"

[Venom]

Originally Posted by Focusedintntions

I don't see where he garuntee's no lights...right from the product page you linked us to:

"Made from 1.4301 (SS304) Stainless Steel 200cpi Catalytic Converter* 1:1 exchange to OEM Unit CAD designed *ECU may need to be coded to avoid engine management light"

I just sent him an email about that byline. I will let you guys know his answer as soon as I receive it.

[Venom]

Originally Posted by Focusedintntions

I don't see where he garuntee's no lights...right from the product page you linked us to:

"Made from 1.4301 (SS304) Stainless Steel 200cpi Catalytic Converter* 1:1 exchange to OEM Unit CAD designed *ECU may need to be coded to avoid engine management light"

"Oh, I need to take that out, I put that in just to be safe."

It has been removed because he does guarantee the no CEL light from the N55 race-catted DP.

[GeeRam]

Originally Posted by Venom

If you guys haven't found a catless solution. Try Wagner's N55 high-flow catted downpipe. He guarantees no CELs and the workmanship is quite impressive.

Wouldn't guarantee no CEL's when that question was asked of them on the 1 Series forum in the UK.

[Venom]

Originally Posted by GeeRam

Wouldn't guarantee no CEL's when that question was asked of them on the 1 Series forum in the UK.

I can't say for sure why that is, but that's what he has confirmed for me in person and by changing that by-line on their site. If you want you can ask them via email: info@wagner-tuning.de

[first350]

Not sure if there's more info on using non-foulers, but it seems to work for N55's...this is the only thread I could find, anyone else this?

http://www.1addicts.com/forums/showt...=n55+dp&page=3

[GeeRam]

Originally Posted by Venom

I can't say for sure why that is, but that's what he has confirmed for me in person and by changing that by-line on their site. If you want you can ask them via email: info@wagner-tuning.de

It was the guy from Wagner-Tuning UK that confirmed it, and the WT-UK website still has the caveat on the webiste saying 'may need ECU coding to avoid CEL issues'
http://www.wagner-tuning.co.uk/bmw-1...gine-102-p.asp

WT-UK were offering a VERY CHEAP offer to be the first in the UK to have one fitted by them on a 135, but the handful of those of us that were interested in doing so all baulked when they wouldn't guarantee no CEL.

[Venom]

Originally Posted by GeeRam

It was the guy from Wagner-Tuning UK that confirmed it, and the WT-UK website still has the caveat on the webiste saying 'may need ECU coding to avoid CEL issues'
http://www.wagner-tuning.co.uk/bmw-1...gine-102-p.asp

WT-UK were offering a VERY CHEAP offer to be the first in the UK to have one fitted by them on a 135, but the handful of those of us that were interested in doing so all baulked when they wouldn't guarantee no CEL.

As I said before, he confirmed the no CEL with me. I just sent him an email asking if there is any difference in the UK as far as CEL goes. I will let you know as soon as I find out.

[Venom]

s

Originally Posted by GeeRam

It was the guy from Wagner-Tuning UK that confirmed it, and the WT-UK website still has the caveat on the webiste saying 'may need ECU coding to avoid CEL issues'
http://www.wagner-tuning.co.uk/bmw-1...gine-102-p.asp

WT-UK were offering a VERY CHEAP offer to be the first in the UK to have one fitted by them on a 135, but the handful of those of us that were interested in doing so all baulked when they wouldn't guarantee no CEL.

http://www.wagner-tuning.co.uk/bmw-1...gine-102-p.asp

That site has now been updated too. "*No ECU engine management light errors in testing to date." He guarantees the cells in the DP to last for 2 years. "We have customers now running almost 20000km on it. We offer a 2 year warranty." "There is no mileage limit within that 2 year warranty"

[first350]

Originally Posted by first350

Not sure if there's more info on using non-foulers, but it seems to work for N55's...this is the only thread I could find, anyone else this?

http://www.1addicts.com/forums/showt...=n55+dp&page=3

Thoughts?



Also, it looks like the OEM DP has 2 cats in it for the N55...the 2nd cat does not seem to be monitored. from pics it looks to be: turbo, primary O2, cat 1, secondary O2, cat 2. If I can find a stock dp, I may just drill out the 2nd cat...thoughts?

[chrisko]

Very interesting. May wait until emissions time before I pull the trigger on any solution.

[bogart]

Any updates?

Anyone try a spacer yet?

[xnfsx]

doesn't work

[chrisko]

Originally Posted by bogart

Any updates?

Anyone try a spacer yet?

Yeah, we've concluded it doesn't work. It'll end up reading O2 is too rich. Quite the sensitive sensor.