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- Porsche 928 4.5L 1978-82
Sold as a set of 4

Fits:
Porsche 928 1978-81
High Performance Brake line race-bred street brake lines are constructed from the finest quality hose, consisting of a PTFE inner hose covered by braided stainless steel. Stainless steel brake lines provide a more responsive and firm brake pedal by eliminating the "spongy" feel that often accompanies stock rubber brake lines.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SPR0285-4P
The product you are viewing cross references to these numbers
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
Sold as a set of 4

Fits:
Porsche 928 1982-83 (Upto VIN DS861385)
High Performance Brake line race-bred street brake lines are constructed from the finest quality hose, consisting of a PTFE inner hose covered by braided stainless steel. Stainless steel brake lines provide a more responsive and firm brake pedal by eliminating the "spongy" feel that often accompanies stock rubber brake lines.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SPR0290-4P
The product you are viewing cross references to these numbers
Stainless Steel Brake Hoses - Precision Braking for Motorsport & Off-Road Use
Stainless steel brake hoses are engineered to deliver consistent, precise brake pedal feel under extreme conditions encountered in motorsport and off-road driving. Unlike standard rubber hoses, stainless steel braided hoses resist expansion under high pressure, ensuring improved braking response, reliability, and driver confidence.
Available from Design911, stainless steel brake hoses are manufactured to motorsport-grade standards, making them an essential upgrade for track cars, competition vehicles, and demanding off-road applications.
What Do Stainless Steel Brake Hoses Do?
Stainless steel brake hoses transmit hydraulic pressure from the master cylinder to the brakes with minimal flex.
Core Functions:
- Maintain consistent brake pressure under heavy braking
- Improve pedal feel and modulation
- Reduce hose expansion compared to rubber lines
- Enhance braking precision and control
- Support high-temperature and high-pressure operation
They are a critical component for predictable braking performance.
Why Do Brake Hoses Fail?
Brake hoses operate in harsh environments and are subject to wear over time.
Common Causes of Failure:
- Internal degradation or contamination
- Damage from debris, abrasion, or improper routing
- Fatigue at hose fittings or crimp points
- Corrosion of fittings in extreme conditions
- Age-related wear or previous over-stressing
Failing hoses can cause soft pedals, leaks, or sudden brake failure.
When Should Stainless Steel Brake Hoses Be Replaced?
Stainless steel brake hoses should be replaced when:
- Signs of leakage or fluid seepage are present
- Braiding becomes damaged or frayed
- Pedal feel becomes inconsistent or spongy
- During brake system upgrades or rebuilds
- Preparing vehicles for track days or competition
Regular inspection and timely replacement are essential for braking safety.
Highlights
- Motorsport-grade stainless steel brake hoses
- Improved braking response and pedal feel
- Resistant to expansion under high pressure
- Suitable for track, race, and off-road vehicles
- Designed for durability and safety