SLN Performance - BMW B58 5” Ceramic Coated Sports Cat Downpipe M140i M240i 240i 440i Z4 and long-lasting performance when reinforcing

and long-lasting performance when reinforcing your rear suspension

providing near-zero deflection and superior durability compared to factory rubber mounts

Designed to work perfectly with OEM callipers and electronics

BMW G20/21 M340i 3

Ensures optimum cooling efficiency

SLN Performance - BMW B58 5” Ceramic Coated Sports Cat Downpipe M140i M240i 240i 440i Z4 and long-lasting performance when reinforcingSLN Performance BMW B58 5 Ceramic Coated Sports Cat Downpipe M140i M240i 240i 440i The SLN 5" super ceramic coated sports cat downpipe is made to fit the legendary Gen 1 BMW B58, (OPF Gen2 downpipes also available). The bore of this pipe is massive, the 5" tube gradually steps into the 4" flexi pipe, which is the biggest pipe combination available on the market today for the Gen 1 B58. This design ensures maximum, uninterrupted flow to match that of a