[Jadar]

I have read that with a catted down pipe the CEL will still eventually come on unless used with a spacer. I have searched a few vendor sites but no one has this. I read about it on here, can anyone point me in the right direction on where to purchase this part? THanks.

[Mike@N54Tuning.com]

These don't actually work reliably and can cause fuel trim issues.

Mike

[Jadar]

Originally Posted by Mike@N54Tuning.com

These don't actually work reliably and can cause fuel trim issues.

Mike

Oh damn...So whats my options? I have read this works reliably well. Is there data or some experience behind this that someone has run into issues with fuel trim?

Reason I went with catted, I am not after maximum power just a bit more and some sound. I dont want my car to smell so I opted for the catted DP.

[quenotte]

Is your car built after 07/2013?

If yes, you can buy HJS catted dp with a dedicated ECE homologated cat that keeps car EU6 and is guaranteed by HJS not to generate dme error codes/CEL (without any lambda spacer).

I've it on my M235i and I'm very happy with it.

See my review here.

Fabspeed has also a catted dp that has a lambda spacer integrated and should not generate CEL...

[Jadar]

Originally Posted by quenotte

Is your car built after 07/2013?

If yes, you can buy HJS catted dp with a dedicated ECE homologated cat that keeps car EU6 and is guaranteed by HJS not to generate dme error codes/CEL (without any lambda spacer).

I've it on my M235i and I'm very happy with it.

See my review here.

Fabspeed has also a catted dp that has a lambda spacer integrated and should not generate CEL...

Only thing is i have a challange Catted DP I got for a hell of a good deal it's brand new and hopefully this works with it as well. It's built in November 2012.

[G30 B58]

Spark plug anti-fouler. Do a search. Ask your local auto parts guy. You may need to drill it out a bit to get your O2 sensor to fit in it.

Or, send me $30 and I'll get one right out to you.

[Jadar]

Originally Posted by F32 N55

Spark plug anti-fouler. Do a search. Ask your local auto parts guy. You may need to drill it out a bit to get your O2 sensor to fit in it.

Or, send me $30 and I'll get one right out to you.

So does this interfere with the fuel trim like the guy above stated? How exactly does this help keep the CEL off? Just curious..

[G30 B58]

Originally Posted by dd1981

So does this interfere with the fuel trim like the guy above stated? How exactly does this help keep the CEL off? Just curious..

I have no idea what it does to fuel trims. A JB4 will keep your CEL off.

You were looking for spacers, I was just telling you where to source them.

The spacers I speak of can be had for ~$5 at any auto part store.

[Jadar]

Originally Posted by F32 N55

I have no idea what it does to fuel trims. A JB4 will keep your CEL off.

You were looking for spacers, I was just telling you where to source them.

That is pretty much the answer I'm looking for, I think to maximize my power potential and keep the CEL off I'm going the JB4 route.

Thanks for the info it was very helpful. I need to order up the JB4 as I was on the fence of getting it anyway.