Thread: M550 downpipe no tune?
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      02-08-2022, 10:24 PM   #19
Kriz2fer
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Drives: Bmw m550
Join Date: Dec 2021
Location: Oregon

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Quote:
Originally Posted by TacticalGunnarM550 View Post
i haven't seen anyone on here claiming this works
Installed the mini cats and they caused the car to idle weird. Took them off
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