19-16mm Reducing Elbow Silicone Hose Colour:Black Hoses Pistons use heat stabilised Viton

Pistons use heat stabilised Viton O-rings

this uses counter balanced springs and dual pistons to prevent the valve from leaking air into the intake system at idle

PFF5-4601M3 Front Wishbone Rear Bush (Fits M3 Only - 60mm)

If you are intending on running over 22psi then you will need the uprated spring

meaning easy fitment under the engine cover

19-16mm Reducing Elbow Silicone Hose Colour:Black Hoses Pistons use heat stabilised Viton19 16mm Reducing Elbow Silicone Hose Technical Details All elbows have equal leg lengths of 63mm up to 12mm diameter, 100mm from 13mm diameter up to 57mm, and 125mm from 60mm diameter up to 102mm diameter. From 6mm diameter up to 48mm diameter are of 3 ply construction, and a wall thickness of 3. 5mm. From 49mm diameter up to 83mm diameter are of 4 ply construction, and a wall thickness of 5mm. From 84mm diameter up to 102mm diameter are 5 ply