What O2 spacer should I buy for my High Flow Cat CEL

[KarstenA4]

Hey, I recently installed my HFC on my 2013 b8.5 A4 and get the normal check engine light, so I was gonna buy a spacer, just not sure what size or angle might work best, so any suggestions help. And I am stage one tuned APR, and since they discontinued stage 2 I can’t get the tune to rid the code.

[old guy]

Try this Clicky click®

[Grouch]

Hey, I recently installed my HFC on my 2013 b8.5 A4 and get the normal check engine light, so I was gonna buy a spacer, just not sure what size or angle might work best, so any suggestions help. And I am stage one tuned APR, and since they discontinued stage 2 I can’t get the tune to rid the code.

What cell count cat do you have? The cell count supposedly plays a role how well the spacer will work. If you do end up trying SNice's method, post back with your results. I plan to try his when the time comes as well.

[KarstenA4]

What cell count cat do you have? The cell count supposedly plays a role how well the spacer will work. If you do end up trying SNice's method, post back with your results. I plan to try his when the time comes as well.

I purchased the 200 cells high flow cat from cts turbo. I had a shop put in a custom straight piped down-pipe for me the high flow is connected to.

[Spawne32]

https://www.audizine.com/forum/showt...ini-Cat-Spacer

[icon5585]

I ordered a 250 cell cat and was hoping (maybe erroneously so) that I wouldn't get a CEL with a stock tune, cross fingers :) :P

[Spawne32]

I ordered a 250 cell cat and was hoping (maybe erroneously so) that I wouldn't get a CEL with a stock tune, cross fingers :) :P

I have a 300 cell 034 motorsports HFC and I still used to get the code before I tuned it out. Seems that with certain spacers you will get the slow response code, and with no spacers you get the efficiency code. Only one I had any luck with was the mini-cat spacer, until the amazon one I had fell apart. lol

[Christianmacart]

I have a 300 cell 034 motorsports HFC and I still used to get the code before I tuned it out. Seems that with certain spacers you will get the slow response code, and with no spacers you get the efficiency code. Only one I had any luck with was the mini-cat spacer, until the amazon one I had fell apart. lol

Just ordered that same HFC from
034 - what spacer did you get?


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[Spawne32]

Just ordered that same HFC from
034 - what spacer did you get?


Sent from my iPhone using Audizine Forum

This style here that I am selling the extra. https://www.audizine.com/forum/showt...ini-Cat-Spacer