BMW M340i G20 & Toyota GR Supra A90 B58 Sports Cat Downpipe 525841

Direct-fit 200 CPSI sports cat downpipe for B58 engines in the BMW M340i (G20) and Toyota GR Supra (A90). No coding, no warning lights, no MOT risk - engineered to pass UK emissions testing while improving throttle response, turbo spool and exhaust tone.

• OEM-position O2 bungs and flex joint for clean fitment
• Metallic catalyst with high noble metal load for durability and compliance
• Ideal foundation for stage 1 tuning or full Supersprint exhaust systems
• Plug and play - no ECU remap required out of the box