[mike@x-ph.com]

Originally Posted by Jnat

I've used CTS high flow on N55 and B58 with no issues including being able to set readiness. If i do downs on this S58 that will be the way i go.

No tune, no spacer?

[Jnat]

Originally Posted by mike@x-ph.com

No tune, no spacer?

Yes tune but i select factory cats in the MHD setting so it monitors and yes, one small spacer on #2 02.

[misterpiz]

Originally Posted by Swest15

Is anyone having any luck with 200 cell cats and O2 spacers or mini cats? I'm trying to decide what I want to do and unsure if I want to spend the money on Apex GESI catted DP.

I’ve been running MAD Catted downpipes (200 CELL) with O2 straight spacer (not the mini cat) and have only had a CEL once in about 1k miles and it lasted for 10ish miles. It was only after I was driving aggressively for the day too.

I have been very satisfied and paid $600ish total versus 3k for a GESI downpipe

[mike@x-ph.com]

Originally Posted by Jnat

Yes tune but i select factory cats in the MHD setting so it monitors and yes, one small spacer on #2 02.

Originally Posted by misterpiz

I’ve been running MAD Catted downpipes (200 CELL) with O2 straight spacer (not the mini cat) and have only had a CEL once in about 1k miles and it lasted for 10ish miles. It was only after I was driving aggressively for the day too.

I have been very satisfied and paid $600ish total versus 3k for a GESI downpipe

im glad to hear that its working out for you with the less expensive options

[Bimmer100_]

Originally Posted by misterpiz

I’ve been running MAD Catted downpipes (200 CELL) with O2 straight spacer (not the mini cat) and have only had a CEL once in about 1k miles and it lasted for 10ish miles. It was only after I was driving aggressively for the day too.

I have been very satisfied and paid $600ish total versus 3k for a GESI downpipe

Can you link us to the spacer you’re using?

[misterpiz]

Yeah bro,

http://www.bigdaddiesgarage.com/straight-cel-fix.html

[Jnat]

Originally Posted by misterpiz

Yeah bro,

http://www.bigdaddiesgarage.com/straight-cel-fix.html

I'm using the smaller straight spacer, interestingly i got a secondary 02 slow response code with the one your using. The smaller spacer set readiness and obviously no codes as a result...

[christianb5s4]

Originally Posted by Jnat

I'm using the smaller straight spacer, interestingly i got a secondary 02 slow response code with the one your using. The smaller spacer set readiness and obviously no codes as a result...

Do you have a link to the shorter spacer you had success with? So odd there's no proven solution car to car.

[evidence]

Originally Posted by christianb5s4

Do you have a link to the shorter spacer you had success with? So odd there's no proven solution car to car.

I'm a few months in with mad 200 cells, not using any spacer and no CELs. Long spacers triggered the slow response CEL before I took those spacers off. I have a set of small spacers just in case I do see a CEL w the sensors direct mounted:

https://www.autozone.com/ignition-tu...009/730544_0_0

[Info@mad-us.com]

Originally Posted by evidence

I'm a few months in with mad 200 cells, not using any spacer and no CELs. Long spacers triggered the slow response CEL before I took those spacers off. I have a set of small spacers just in case I do see a CEL w the sensors direct mounted:

https://www.autozone.com/ignition-tu...009/730544_0_0

The sensor might bottom out on that spacer. I think it needs to be at least 36mm long.

[Bimmer100_]

Originally Posted by Info@mad-us.com

The sensor might bottom out on that spacer. I think it needs to be at least 26mm long.

What’s the reason why the big daddy ones don’t work ?