HEL BMW F80 M3 & F82/F83 M4 Stainless Steel Front & Rear Braided Brake Lines

Upgrade the braking response and reliability of your BMW F80 M3 or F82/F83 M4 with this precision-engineered stainless steel braided brake line kit from HEL Performance. Designed to eliminate the sponginess often associated with factory rubber hoses, this front and rear kit delivers sharper pedal feel and consistent braking performance under extreme conditions.

Constructed from a PTFE inner core, durable stainless steel braided outer layer, and finished with a protective PVC coating, each line is fitted with corrosion-resistant stainless steel (303/304) fittings swaged in-house for maximum strength and integrity. Ideal for fast road use and spirited driving, this HEL kit ensures long-lasting performance and confidence behind the wheel.

Key Features:

• Designed for BMW F80 M3 & F82/F83 M4
• Improves braking precision and pedal feel
• Removes sponginess found in rubber hoses
• Superior resistance to pressure, heat, and corrosion
• Includes HEL Lifetime Warranty

Technical Specifications:

• Line inner material: PTFE
• Line outer material: Stainless steel (303/304) with protective 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