H&R 08-13 BMW 128i/135i E82 OE Sport Spring Exhaust- Mufflers & Tips>Muffler Delete Pipes BD Engine brake has been

BD Engine brake has been the industries time proven VARIABLE REGULATING BACK-PRESSURE EXHAUST BRAKE

The AIRAID Air Box System is easy to install with common hand tools

Redesigned components allow for up to 70mm of lowering on a set of high quality threaded performance dampers

The mid-section contains Borla's unique SwitchFire® X-Pipe technology that eliminates the turbulent center intersection of a standard X-Pipe while truly blending the combustion pulses from both sides of the engine for increased performance and improved sound

while introducing intoxicating crackles when shifting

H&R 08-13 BMW 128i/135i E82 OE Sport Spring Exhaust- Mufflers & Tips>Muffler Delete Pipes BD Engine brake has beenOnly from H&R, OE Sport Springs are for those who desire a slight increase in handling and control. You can expect reduced body roll and superb ride comfort with better driving convenience. OE Sport Springs provide a subtle upgrade for a fine tuned vehicle.