Applicable BMW L4/L6/V8 Engine, equal length exhaust header. Effectively decreases exhaust pressure and high rpm¡K.

Stainless steel finish and the high-tech design decrease exhaust back pressure and allows more torque output during low rpm.

It provides smoother engine start up and power output; with the amplifier it increase 15% of the ignition power and voltage.

Made from 6061-T6 forged aluminum materials with high-rigidity anodized surface. For¡GM42¡BM43¡BM44¡BM50¡BM52¡BM54¡BS50¡BS52¡BS54.

Ruff¡¦s crank pulley is 1/3 lighter than BMW¡¦s OEM pulley; the groove and bore size fits OEM belt.

The RSD MK2 Product, It provides smoother engine start up and power output; with the amplifier it increase 15% of the ignition power and voltage.

The internal mechanism of the twin tube design use hydraulic fluid and air so the damping piston actuator stroke is longer than mono shocks¡K.

Full Height Adjustable + Inverted Shock+ 20 way Adjust.

Integrated several different rubber materials to create a composite rubber suspension bushing.

The suspension arm bushing is made for each specific model and was design corresponding to the manufacture¡K.

The entire caliper body is made of forged aluminum alloys. It improves the strength of the brake itself to provide excellent braking.

The engine oil temp./ pressure sensor adapter.

BW-WS-01¡G72.6x15mm¡BBW-WS-02¡G72.6x20mm¡BBW-WS-04¡G72.6x30mm¡BBW-WS-05¡G57.1x15mm¡C