Milltek Sport Active Exhaust Valve Controller Module | BMW G8X M3/M4
The Milltek Sport Active Exhaust Valve Controller Module allows full exhaust valve opening for a raw sound, with easy installation.
- The description claims the module bypasses stock ECU constraints.
- The description claims it provides a raw cold start and deep low-end rumble.
Variants (1)
- Default Title — 455.82 USD — In stock
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