HEL BMW G80/G81 M3 & G82/G83 M4 Series Stainless Steel Front & Rear Braided Brake Lines

Upgrade your braking performance with the HEL Performance stainless steel braided brake line kit, designed specifically for the BMW G80/G81 M3 and G82/G83 M4. This front and rear set eliminates the spongy pedal feel caused by rubber hoses under high pressure, delivering improved pedal response, consistency, and driver confidence—whether on the road or at the track.

Manufactured using a PTFE inner core and a stainless steel (303/304) braided outer layer with a durable PVC coating, these lines offer superior resistance to heat, pressure, and corrosion. Every HEL kit is hand-assembled, pressure-tested, and backed by a lifetime warranty, making it a high-performance and reliable upgrade over OEM lines.

Key Features:

• Fits BMW G80/G81 M3 & G82/G83 M4
• Front & rear complete brake line kit
• Eliminates brake fade and improves pedal feel
• Stainless steel braided construction with PTFE core
• High-grade 303/304 stainless steel fittings
• Enhanced durability and heat resistance
• HEL Lifetime Warranty

Technical Specifications:

• Line inner material: PTFE
• Line outer material: Stainless steel (303/304) with PVC cover
• Fittings material: Stainless steel (303/304)
• Temperature range: -70°C to 260°C (-94°F to 500°F)
• Inside diameter: 3.5mm (0.138")
• Outside diameter: 7.5mm (0.295")
• Maximum working pressure: 290 Bar (4206 PSI)
• Burst pressure: 870 Bar (12618 PSI)
• Minimum bend radius: 38mm (1.496")

What’s in the Box?

• Stainless steel braided brake lines (front & rear)
• Stainless steel banjo bolts (if required)
• Copper crush washers (if required)
• Lifetime warranty keyring fob
• Installation leaflet