2012 MS3 O2 Sensor Error Code

[carlos_velazquez84]

I am in the process of upgrading my exhaust system to aftermarket downpipe and catless exhaust. Need feedback as to how to get rid of the error code for going catless. I have the COBB tuner also also blowoff valve, fuel pump interal, and cold air intake.

[WetzMS3]

I feel like I have read this exact phrase before very recently.....

@dale_gribble; can you help this guy figure out how to check a box in ATR?

[MS3Shadow]

I have the same feeling too... o.o

sent from my HTC One M9

[WetzMS3]

I envision @carlos_velazquez84; attempting to navigate the forum and find a check box looking something like this:

[dale_gribble]

OP I recommend cats. Instead of removing cats, I suggest for highest performance to have a shop weld cats back to back until the exhaust tips. There will be so much catalyst bro. I suggest ceramic monolith cats or tabby cats if ceramics are unavailable.

[carlos_velazquez84]

THANK YOU, dale_gribble for your assistance. I really appreciate your positive feed back.

[WetzMS3]

@neganox; OP needs some catdickracing high performance cats.

[neganox]

We have a few models OP. I highly recommend CAT-0041HP.

[Chinchilla Dakilla]

Originally Posted by dale_gribble OP I recommend cats. Instead of removing cats, I suggest for highest performance to have a shop weld cats back to back until the exhaust tips. There will be so much catalyst bro. I suggest ceramic monolith cats or tabby cats if ceramics are unavailable.

Question for you sir. I'm still really new to the car scene.

I was always told to remove the Catalytic Converters for better performance. Unless you invested in those High Flow Cats which are pricey.

My state doesn't have emission tests.

Sent from my SAMSUNG-SM-G870A using Tapatalk

[robbspeed]

Originally Posted by Chinchilla Dakilla Question for you sir. I'm still really new to the car scene. I was always told to remove the Catalytic Converters for better performance. Unless you invested in those High Flow Cats which are pricey. My state doesn't have emission tests. Sent from my SAMSUNG-SM-G870A using Tapatalk

I'm not sure if your serious or not but high flow cats are not expensive. You can get one for like $100. Catless vs high flow cat might be a difference of like 3 whp

[Chinchilla Dakilla]

Originally Posted by robbspeed I'm not sure if your serious or not but high flow cats are not expensive. You can get one for like $100. Catless vs high flow cat might be a difference of like 3 whp

I've only seen them for like $200 to $300.

Maybe I'm a cheapo, but even $100 I could spend better elsewhere if it is going to reduce my whp.

Sent from my SAMSUNG-SM-G870A using Tapatalk

[MD1032]

Let me just say this: When I went catless, I started using a Cobb Stage 3 OTS base map file and copied all of my tables into that and not only do I not get the code (because it's unchecked in this map), but my emissions readiness monitor actually shows "ready"...