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Milltek Secondary Catalyst Bypass | BMW G8X M3 M4 [SSXBM1339]

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Regular price $1,163.09
Product INFO
  • Vendor Milltek Sport
  • SKU MTK.SSXBM1339
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Non-resonated 102mm single mid pipe for BMW G8X M3 and M4 (S58 engine). Direct fitment to OE axle back or compatible with Milltek Axle Back systems. Engineered for closed-course and track use.

T304L stainless steel, mandrel-bent construction with hand-finished welds. Designed to eliminate secondary catalytic restriction while maintaining OEM+ mounting points and hanger compatibility. Ships August 1, 2024.

Fitment:

  • BMW M3 G80 (2021+)
  • BMW M4 G82/G83 (2021+)
  • Works with OE axle back (SSXBM1339) or Milltek Axle Back (SSXBM1340)

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Fitment

  • BMW 3 Series G80 M3 & M3 Competition S58 3.0 Turbo 2021 and Later
  • BMW 4 Series G82 M4 & M4 Competition S58 3.0 Turbo 2021 and Later

Key Facts

  • Pipe diameter: 101.60mm
  • Fitting time: 1.5 to 2 hours to fit (including removing OE system)
  • Race product: Yes
  • E-marked: No