E46 M3 Catless Headers Install

[M3mike]

Currently installing catless headers. Wow, a few of those header nuts were very rediculous to access....

Question 1) Can I delete my secondary air pump without having it coded out or will this affect the drive-ability? I know it will throw a check engine light but I plan on coding it out later.

Question 2) Can I remove entirely the post-cat 02 sensors and wires and just have the bungs in place. Again I know this will throw a check engine light. But I will code it out later. I guess I'm just wondering if I should still wire them up even though they will be useless or if I should just remove them entirely?

Thanks for the help!

[Icecream]

Thats what i did, fine wothout coding except cel. Get martyns tool for coding, like 30 bucks and ten minutes.

[M3mike]

Did you delete your SAP right off the bat with no coding? I don't wanna have to put it on to take it back off again but I don't want it to be undrivable I have the backing plate to delete.

[Icecream]

Did you delete your SAP right off the bat with no coding? I don't wanna have to put it on to take it back off again but I don't want it to be undrivable I have the backing plate to delete.

Yes.

[M3mike]

Thanks for the help

[clawhamm3r]

I'm running the 02s even though they're coded out. They're just plugging the wholes haha. I think it ran without the SAP and O2 delete for almost a year before I finally did it.

[Syfon]

Yes and yes. It will run fine without the sap & post-cat o2 sensors.

[Tbonem3]

I have extra bung caps if anyone needs a pair to plug holes. Pay shipping.