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BMW M4 Hamann Akrapovic – Stage 4 Sound & Launch

This video features a heavily tuned BMW M4 with Hamann upgrades and an Akrapovic exhaust system, running Stage 4 modifications. Captured with launch control, tire-smoking burnout, full-throttle ...
Hosted on MSN

BMW M4 Hamann Stage 4 – Akrapovic Exhaust Sound, Launch Control, Acceleration and Burnout

The BMW M4 Hamann Stage 4 delivers intense performance with Akrapovic exhaust, full-throttle acceleration, and launch control in action. This video features sharp gear shifts, aggressive sound, and ...