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Old 10-04-2021, 11:24 AM
e39_touring e39_touring is offline
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Location: Seattle, WA
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Quote:
Originally Posted by aheckenast View Post
The catless exhaust smell is noticeable at times but way less than I expected.

Overall I am very pleased. Highly recommend these if you don't mind going catless on the 3.0i.
Good job on the install! I highly recommend flashing the eu2 tune (factory euro catless tune). The exhaust smell will go down 80-90%, no cel, and you'll see a little better mileage. Without the rear o2's, the x is running pig rich as the ecm is constantly testing catalytic efficiency.
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2012 xDrive35d
2001 BMW X5 3.0i 5MT
and two 1987 Corvettes - Callaway Twin Turbo and Guldstrand Grand Sport 80
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Last edited by e39_touring; 10-04-2021 at 11:41 AM.
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