BMW M4 F82/F83 & M4 Competition S55 (2014-2018, Non-OPF) Secondary Catalyst Bypass Pipes SSXBM1032

Direct-fit secondary catalyst bypass pipes for the BMW M4 F82 Coupe, F83 Convertible and M4 Competition - all non-OPF S55 engines from 2014 to 2018. Not a placeholder; not a compromise.

Made in the UK from 304 stainless steel, mandrel bent for unrestricted flow. Bolt-on fitment with no modifications needed.

• Designed exclusively for use with Milltek cat-back systems
• Compatible with OE or Milltek primary downpipes
• Unlocks sharper throttle response, quicker turbo spool and more authentic S55 exhaust note
• No welding, no cutting - just remove, replace, and drive