The G8X M2, M3, and M4 have the braking hardware to handle serious track use — factory rubber lines are the weak link. Under hard driving, OEM lines expand and soften the pedal precisely when you need it firmest. The Goodridge G-Stop kit replaces every rubber line with braided stainless and PTFE, eliminating expansion and delivering a repeatable, consistent pedal through a full track day.
Goodridge G-Stop brake line kits are direct bolt-on replacements for all OEM rubber brake lines, with hose ends and brackets engineered to match factory mounting points. Every kit is US DOT certified and TUV approved, and all lines are pressure-tested to 3,000 PSI through Goodridge's 9-point quality assurance process.
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Construction: Stainless steel outer braid with PTFE inner liner
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Durability: Abrasion and corrosion resistant for long-term reliability
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Installation: Direct OEM replacement — hose ends and brackets match factory mounting
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Certifications: US DOT (FMVSS No. 106) and TUV approved
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Pressure tested: 3,000 PSI through Goodridge's 9-point QA process
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Fitment: BMW G87 M2 | G87 M2 Competition | G80 M3 | G80 M3 Competition | G80 M3 CSL | G82 M4 | G82 M4 Competition | G82 M4 CSL | G83 M4 | G83 M4 Competition | G83 M4 Convertible
