Clutch Pipe Aston Martin DB2/4 & Mk3 ACP051

Why Choose Copper Nickel (Kunifer) Over Standard Copper?

When you're plumbing in new brake or fuel lines, you want a job that lasts the lifetime of the vehicle. While standard copper is often the default choice because it’s soft and easy to flare, it lacks the structural strength and long-term fatigue resistance required for high-stress applications. That’s where Copper Nickel (commonly known as Kunifer, CuNi, or NiCopp) comes in.

This alloy is the professional workshop standard. By blending copper with nickel, you get a pipe that offers the best of both worlds: the absolute corrosion resistance of copper, combined with the tensile strength and fatigue resistance of steel. It won't work-harden and crack under chassis vibration, and it easily handles the extreme hydraulic pressures of modern braking systems.

Real-World Workshop Benefits:

• Superior Corrosion Resistance: Unlike steel lines that scale and rust, or cheap copper that can suffer from green oxidisation, Kunifer stands up to road salt, moisture, and grime. This is the key to securing long-term MOT passes on under-car brake lines.
• High Fatigue Strength: Engine and road vibrations can cause standard copper lines to harden and eventually crack at the flares. Copper Nickel resists this work-hardening, making it much safer for high-vibration areas.
• Better Kink Resistance: Because it has a higher wall strength than pure copper, Kunifer is less likely to collapse or kink when you're forming tight bends around chassis rails and suspension turrets.

Mechanic's Tips for Fitting:

Because Copper Nickel is slightly stiffer than pure copper, we recommend using a high-quality hand bender to get those factory-sharp radiuses without flattening the pipe. When flaring, ensure you use a decent quality flaring tool (hydraulic or turret-style works best) and lightly lubricate the die to get a perfect, leak-free DIN or SAE flare every time.

Please note: The appearance of the pipe coil may differ slightly from the image shown depending on production batches, but the material specification and performance remain identical.

Material: Copper Nickel

(Pipe may differ to image shown)

Copper pipes are more traditional and easier to work with however Copper Nickel (aka CuNI, Kunifer, cupro-nickel or NiCopp) is more resistant to corrosion and has a higher fatigue strength.