BMW F20 F21 F22 F23 F30 F31 M140i M240i 340i Supersprint Downpipe with 200 CPSI Metallic Cat

Direct-fit Supersprint downpipe for BMW F-series 6-cylinder turbo models: M140i (F20/F21), M240i (F22/F23) and 340i (F30/F31). Uses a 200 CPSI metallic catalytic converter with high noble metal content - no CEL, no MOT failures, no rotten-egg smell.

• Exact OEM O2 sensor and flange positions - bolts straight on, no ECU tweaks needed
• Integrated flex joint handles engine movement; threaded O2 bung included
• Plug-and-play fitment - no cutting, welding or modification required
• Proven foundation for stage 1 remaps, fast-road use or track-day prep