Brake Line Kits for Reliable Performance and Safety

What This Collection Covers

Brake lines carry pressurized brake fluid from the master cylinder and ABS module to each caliper. Factory rubber brake lines expand slightly under hard braking pressure, which creates a small amount of pedal sponginess. Stainless steel braided lines wrap a PTFE inner liner in a steel mesh sleeve that resists expansion under pressure, producing a firmer, more consistent pedal feel that is especially noticeable during repeated hard stops or track driving.

Front, Rear, and Full Kits

This collection includes front only kits, rear only kits, and full front and rear sets. Many high horsepower platforms like Hellcat, Trackhawk, and TRX benefit from a full set since the added weight and power increase brake system demand on both axles.

Fitting Types

Banjo fitting lines connect at the caliper with a rotating banjo bolt, matching most OE caliper designs. Some big brake kits use a different fitting thread or style, so confirm the caliper brand and fitting size before ordering a line kit for an upgraded brake system.

Stainless Steel vs Rubber Brake Lines

Stainless Steel Braided Lines

Firmer, more consistent pedal feel under hard and repeated braking. Resistant to abrasion, road debris, and UV degradation compared to rubber. The preferred choice for track use, towing, and high horsepower builds where brake fade and pedal consistency matter most.

Rubber Replacement Lines

Lower cost, OE style feel, and adequate performance for daily driving and light use. A reasonable choice when simply replacing cracked or aged factory lines on a vehicle that will not see track or heavy tow duty.

Brake Fluid and Bleeding After a Line Install

Installing new brake lines requires a full bleed of the brake system to remove air introduced during the line swap. Use fresh DOT 3, DOT 4, or DOT 5.1 fluid matching the vehicle manufacturer specification, and bleed each caliper starting with the one farthest from the master cylinder. A two person or pressure bleeder setup makes the process faster and reduces the chance of trapped air.

DOT Compliance and Street Legality

Most brake line kits sold in this collection carry DOT approval for street use. Confirm the DOT rating on the specific line kit before ordering if the vehicle needs to pass state inspection, since non DOT racing lines are intended for closed course or off road use only.

Pairing Brake Lines with Rotors and Pads

New brake lines are frequently installed alongside new rotors and pads as part of a complete brake refresh, since all three components affect overall pedal feel and stopping performance. Upgrading to performance rotors and pads without addressing aged rubber lines leaves pedal sponginess on the table, while new lines paired with worn rotors and pads will not fully resolve stopping power concerns.

Top Brake Line Brands

• Rotora. Vehicle specific stainless steel brake line kits for Mopar, Jeep, and Ford platforms
• Goodridge. G-Stop stainless braided lines for import and European vehicles
• StopTech. Stainless steel lines matched to StopTech big brake kits
• ISR Performance. Stainless brake line kits for Nissan and import platforms
• Russell. Speed Bleeder compatible stainless line kits
• Wilwood. Brake line kits matched to Wilwood caliper and master cylinder kits
• Earl's Performance. Custom length stainless brake line and fitting kits
• Black Ops Auto Works. Vehicle specific matched line and hardware kits

How to Choose the Correct Brake Line Kit

• Confirm the exact year, make, model, trim, and factory brake system configuration
• Determine whether front only, rear only, or a full set is needed
• Verify fitting type and thread size match your calipers, especially with big brake kits
• Confirm DOT approval if the vehicle needs to pass state inspection
• Check for any ABS sensor bracket or line routing clips included in the kit
• Match line length to any suspension lift or lowering that changes routing needs
• Plan for a full system bleed with fresh DOT rated fluid after installation
• Inspect banjo bolt washers and replace with new copper washers during install
• Torque fittings to the manufacturer specification to avoid leaks
• Read fitment notes for any master cylinder or proportioning valve compatibility

Common Questions

Do stainless steel brake lines really improve pedal feel?

Yes. Stainless steel braided lines resist the slight expansion that rubber lines experience under hard braking pressure, producing a firmer and more consistent pedal feel, especially noticeable during repeated hard stops or track driving.

Are stainless brake lines legal for street use?

Most stainless brake line kits sold in this collection carry DOT approval for street use. Confirm the DOT rating on the specific listing before ordering if your vehicle needs to pass state safety inspection.

How often should brake lines be replaced?

Rubber brake lines typically last 10 to 15 years before rubber degradation, cracking, or bulging becomes a concern. Stainless steel lines generally outlast the vehicle. Inspect lines during every brake service for cracking, bulging, or leaks.

Do I need to bleed the brakes after installing new lines?

Yes. A full system bleed with fresh DOT rated fluid is required after any brake line replacement to remove air introduced during the swap and restore firm pedal feel.

Can I install brake lines myself?

Many enthusiasts install brake line kits themselves with basic hand tools and a flare wrench set, but the job requires careful attention to torque specs and a proper bleed afterward. If you are not comfortable bleeding brakes, have a shop complete the install.

Will new brake lines fit my big brake kit?

Only if the fitting size and thread match your specific big brake kit caliper. Confirm the big brake kit brand and caliper model before ordering a line kit for an upgraded brake system.

What is the difference between DOT and racing brake lines?

DOT approved lines meet federal safety standards for street use and typically use a rubber outer jacket over the braided sleeve. Racing lines may skip the outer jacket for lighter weight but are intended for closed course or off road use only.

Do brake line kits include new banjo bolts and washers?

Many kits include new copper crush washers, and some include new banjo bolts. Check the specific kit contents before ordering, and always use new copper washers at each banjo fitting during installation.

Can I mix stainless lines with my stock rotors and pads?

Yes. Stainless brake lines are compatible with any rotor and pad combination and provide a pedal feel improvement regardless of what rotors or pads are installed.

What fluid should I use after installing new brake lines?

Use fresh DOT 3, DOT 4, or DOT 5.1 fluid matching your vehicle manufacturer specification. Never mix DOT 5 silicone fluid with DOT 3, 4, or 5.1 glycol based fluid.

Why Buy Brake Line Kits from Black Ops Auto Works

Black Ops Auto Works stocks 647 brake line kit SKUs across front, rear, and full vehicle categories with real fitment data, competitive pricing, and support from staff who build and race these vehicles themselves. Products are filterable by year, make, model, trim, engine, and drivetrain to confirm the correct application before ordering.

For a complete brake upgrade, browse our Brake Rotors, Brake Pads, Brake Kits, Brake Caliper Components, and Wilwood collections.