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      03-01-2021, 08:12 AM   #21
TopJimmy
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Drives: 2023 M3 Comp xDrive
Join Date: Jul 2019
Location: Chester County, PA

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Quote:
Originally Posted by jturboawd View Post
I installed these as well. Used to be totally catless. I am GC+ tuned 93 30psi or so. When i went to these by tune went to absolute SH!T. Was pulling 10 degrees. I did not expect this since its only 200 cell. I had to go back.
Just checking...you have a hot tune and when you installed the sport cats instead of catless the motor started to pull timing? What tune are you on for 30PSI?
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