Check out this world’s first M140i B58 with a 4 inches turbo-back semi-oval exhaust system hitting the road. Everything is designed and built on the DKU Performance platform. Stay tuned as the work has not been completed yet. Watch till the end to enjoy the loud sound this vehicle is producing after getting its custom job done by our skilled engineers. You will find this sound as cool and impressive as our valuable client did. At DKU Performance, we custom design and built high-quality exhaust systems for all types of vehicles. Our exhausts range from the turbo-back exhaust system to the cat-back performance exhaust system.