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rpmdiag, Tech and Instructor
Category: BMW
Satisfied Customers: 7055
Experience:  Since 1975
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Is there a way to remove the catalytic converters on a E39

Customer Question

Is there a way to remove the catalytic converters on a E39 M5 without throwing codes? I want to race this car so its not going to be on the street.
Submitted: 6 months ago.
Category: BMW
Expert:  rpmdiag replied 6 months ago.

Hi, welcome to Just Answer. I'm Ron and I will be helping you today.

Yes, you need to visit a tuner shop to take out the rear O2 sensor feedback to the computer seeing that you're not using it on the street anymore, they can also boost the horsepower as well.

Thanks, Ron

Expert:  rpmdiag replied 5 months ago.

Hi, I'm just following up with you to see if you have any more questions.
Thanks, Ron