B58 Downpipe Upgrade 2016+ BMW M240i/340i/440i/540i/740i & xDrive

STRYKER PERFORMANCE

 4.5″ F20/F30/F31/F32/F33/F34/F36/G30/G11/G12 B58 Stainless Steel Downpipe

• Made from hand crafted, tig welded 4.5″ 304 grade stainless steel.
• Fits RHD and LHD models with no modification necessary.
• Smooth radius bends to decrease turbulence and increase flow.
• Fits the stock catback as well as all aftermarket catbacks.
• Gains from 25-30hp with tune.