BMW X5 M TTR PP-Performance Stage 3 vs. AUDI RS6 Evotech Stage 1

BMW X5 M TTR PP-Performance Stage 3 - 720-740 bhp & 1 060 Nm Intake System PP-Performance ECU PP-Performance Headers PP-Performance Downpipes vs. AUDI RS6 Evotech Stage 1 - 680 bhp. Enjoy!