The BRONDEX® Downpipes for BMW ALPINA B3 G20/G21 GT and B4 G26 Gran Coupe GT (3.0 S58 engine) are engineered to improve exhaust flow, reduce backpressure, and increase engine performance by facilitating smoother gas flow from the engine to the rest of the BMW ALPINA exhaust system. By optimizing exhaust flow, the BRONDEX® Downpipes lead to higher horsepower and torque gains.
