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      06-14-2025, 08:01 PM   #3
BWilson263
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Drives: 2019 540i - 2020 X5 40i
Join Date: Apr 2022
Location: NJ

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Quote:
Originally Posted by badseedtech View Post
After much consideration, I ordered the MAD axle-back and the SST valve controller from mike@x-ph.com this morning. I’ll post clips and db measurements after install.
You won't be disappointed with your choice. I did somewhat the same but, I added the Remus mid pipe. It's nice to be able to control the exhaust flap.
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