[Bavar-ian]

Originally Posted by AlpineG05

https://www.ctsturbo.com/product/cts...e-for-bmw-b58/

It does throw a CEL, but I'm running their 90 degree spacer and it's been pretty good so far. When I get a light, I delete it using the jb4 app.

https://www.ctsturbo.com/product/cts-cel-eliminator/

Wanted to ask about the O2 spacer.
My CEL comes on whenever it goes above 3k rpm.
Im on JB4 and MPE as well.
Have ARRMA intake and FTP pipes.