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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 sound test: Stock vs Akrapovic

This video compares the sound and performance of two BMW M4 F82 models — one fitted with an Akrapovic exhaust, the other in stock configuration. Viewers will hear revving tests, acceleration clips, ...