Increasing the bore of the downpipe and replacing the restrictive catalytic converter allows the exhaust gases to flow much more freely

Spring rate : 7 kgF/mm (front) & 4

For both front of rear drive vehicles is equipped

Clutch Disc Spline Diameter (mm)

Downpipe - BMW F2X Serie F3X G3X G1X M140i M240i 340i 440i Modello_159 (939) (2005-2011) Increasing the bore of theDownpipe designed for: BMW 1 Series Mk2 (F20 1K2,F21 1K4) '11 BMW 2 Series Mk1 (F22,F23) '13 BMW 3 Series Mk6 (F30 F31 F34) '11 BMW 4 Series Mk1 (F32 F33 F36) '13 BMW 5 Series Mk7 (G30 G31 G38) '17 BMW 7 Series Mk6 (G11 G12) '15 Downpipe from TurboWorks , is made of 100% stainless steel. Inlet diameter: 134mm (from without flaning), 85 mm (from within) Outlet diameter: 76mm (from within)