This Mercedes A250  with our Stage 2 custom dyno tune  is putting on a show — producing flames on deceleration ! For those who love the drama, the setup can be further enhanced with our switchable crackle feature , delivering that show-stopping exhaust note whenever you want. Check the dyno graph — the power gains from the tune alone  are impressive, giving you a noticeable boost in real-world performance. At REVHIGH, we offer a complete performance solution  for these Mercs