Question on Exhaust Upgrade and Break-in Period
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08-15-2012, 05:35 PM
BimmerPost Supporting Vendor
Drives: 08 E90 M3 / 400whp Turbo 7
Join Date: Apr 2008
No problem installing the exhaust system straight away. No reason to wait.
I've tuned many cars with under 100 miles on them, no reason to wait there either!
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