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Milltek Secondary Catalyst Bypass | BMW G8X M3 M4
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Milltek Secondary Catalyst Bypass | BMW G8X M3 M4

SKU: SSXBM1339

$1163.09 $1163.09
Non-resonated 102mm secondary catalyst bypass for BMW G8X M3/M4 (S58). T304L stainless, mandrel-bent, track-focused. Fits OE or Milltek axle back.
More info Z-Pipe upgrade for existing Milltek BMW G80 M3 and G82 M4 secondary catalyst bypass customers. 3D printed 316L stainless. Replaces a Milltek X-Pipe, resonator or twin straight pipes in a 102mm mid-pipe or secondary cat bypass system. Cannot be used on its own. Engineered for the Emotion. - Read More

Parts

Description

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.

Key Facts

Pipe Diameter 101.60
  1.5 to 2 hours to fit (including removing OE system)
Race Product Yes
EMarked No

System Fitment List

    • 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

Shipping Information

This system ships in 1 box.

Box 1: 51 x 15 x 12 at 48.51lbs

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