BimmerPost Supporting Vendor
Drives: 2021 IOMG M3 Sedan
Join Date: Feb 2009
Location: Oviedo, FL
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..::PSI::.. - Upgrading an M4 CSL With the PSI G8x Midpipe!
Waking up this G82 M4 CSL with our PSI G8X Midpipe and DAHLER valve controllers. A complete necessity when looking to get the most out of this platform.
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