The BMW M4 tuned by Bimmer Tuning with Stage 2 upgrades takes on drag races and drifting action. With boosted power and aggressive tuning, this M4 delivers brutal accelerations, tire-shredding drifts, ...

The factory exhaust, damaged in the original crash, gets replaced with a performance-focused Scorpion cat-back system. With a secondary cat delete and freer flow, the sound and response change ...