[KKevin]

If I do a muffler delete will I get codes on my e90? Eventually?
I have been reading posts for about 5 days now and it seems like a consistent "Eventually you will cause its straight piped." Answer.

Just wanted to ask everyone's experience.
E90 N52

[whyzee125]

Originally Posted by KKevin

If I do a muffler delete will I get codes on my e90? Eventually?
I have been reading posts for about 5 days now and it seems like a consistent "Eventually you will cause its straight piped." Answer.

Just wanted to ask everyone's experience.
E90 N52

If you're just talking muffler delete, no. If you delete the cats, yes.

There are no O2 sensors anywhere near the muffler. I would make sure the vacuum line for the exhaust flap is capped off however.

[KKevin]

Bump, still looking for more feedback I guess?

[IllSic_Design]

You got your answer.

No, a muffler delete will not cause any codes.

[Luis561]

A muffler delete is not being straight piped

[Ferdi_bimmer]

I have a muffler delete over a year no codes

[tritan2025]

no, just removing your muffler on an n52 will not give any code. removing the resonator is also safe to do, even both secondary catalytic converters. but the primary cats do have o2 sensors attached so removing those will throw a code.

[acg2002us]

Originally Posted by tritan2025

no, just removing your muffler on an n52 will not give any code. removing the resonator is also safe to do, even both secondary catalytic converters. but the primary cats do have o2 sensors attached so removing those will throw a code.

This is the answer.