Let your engine unleash all of its pent up horsepower and torque by installing a new 3 series exhaust. These BMW 3 series exhausts will add more mid-range and top-end power to your car so that you can pass other cars more effectively. Getting your car up to speed will be so much easier thanks to a 3 series exhaust system. Every one of these e46 3 series exhaust systems is also going to let your engine sing. You will finally be able to hear your straight six in all of its glory when you install an e90 exhaust system. Our 3 series custom fit exhaust systems are made by the best manufacturers and all of them will make the back of your car stand out.