Dinan Underdrive Crankshaft Pulley Kit - BMW M5/M6 downpipes Relentless Automotive Development Downpipe with

Relentless Automotive Development Downpipe with GESI High Flow Catalytic Converter

What is most different about the 540i system however is a completely new tip design from anything Dinan has done prior

5 in Diameter - 2

• CAT6 Map3 with R

Dinan has a straight-through single pipe design to further reduce noise at light throttle cruise

Dinan Underdrive Crankshaft Pulley Kit - BMW M5/M6 downpipes Relentless Automotive Development Downpipe withDinan's lightweight billet aluminum crankshaft pulley underdrives each of the accessories by 13 percent, reducing parasitic drag on the engine for a 6 HP @ 8000 RPM and 4 lb ft torque @ 8000 RPM gain on a stock vehicle. The Dinan underdrive pulley retains the factory harmonic crankshaft damper, eliminating vibration that might otherwise damage the crankshaft. The kit includes all of the necessary mounting hardware, lightweight pulley, and shorter