Goodridge G-Stop Brake Lines for 02-06 Acura RSX

Goodridge G-Stop Stainless Brake Line Kit - 2002-2006 Acura RSX (20104)

The DC5 RSX, and especially the Type S, is a K20 car people drive hard and track, and the factory rubber brake lines are the weak link when you do. Under hard or repeated braking, the rubber lines flex and expand under pressure, so part of your pedal effort balloons the lines instead of clamping the brakes, and the pedal goes soft right when you're leaning on it. These Goodridge braided stainless lines fix that: a PTFE inner line in a stainless steel braid that doesn't expand, so the pedal stays firm and consistent. On an RSX that sees street, autocross, or track use, it's one of the most worthwhile brake upgrades you can make.

Why Braided Lines Firm Up The Pedal

Here's what's actually happening, and what these do and don't change.

Rubber brake lines flex and expand under the pressure of hard braking, and that expansion is what you feel as a soft, spongy pedal, part of your foot pressure is stretching the lines instead of applying the brakes. It gets worse the harder and more repeatedly you brake, and as the factory rubber ages.

The stainless braid around these Goodridge lines minimizes that expansion, so more of your pedal pressure goes straight to the calipers. The result is a firmer, more responsive pedal with more consistent feedback, especially during repeated or aggressive braking where rubber lines go soft. To be clear about what braided lines do: they improve pedal feel and consistency, they're not a substitute for better pads, rotors, or tires if you're chasing shorter stopping distances, but for how the brakes feel and respond through a session, the difference is immediate and genuine. On a tracked DC5, a firm, predictable pedal is real braking confidence.

PTFE Core, Stainless Braid

The construction is what makes them firm and durable.

Each line is a PTFE inner line (which handles brake fluid and heat without degrading) inside a braided stainless steel outer layer that provides the firmness and protects the line from abrasion and corrosion. Stainless braided lines hold up far better over time than rubber, which cracks and degrades with age, and they look the part under the car too.

Goodridge is the name in braided brake lines, developed for motorsport, and these go through a nine-point quality-assurance process, each line tested for tensile strength and pressure-rated to 3,000 psi. They meet FMVSS 106 (the federal brake-hose safety standard), are DOT compliant, and are TÜV approved, so they're properly certified, not just a cosmetic braided line.

Complete 4-Line Kit, Direct Bolt-On

Everything for the install is in the box.

The 20104 kit is a complete 4-line set, two front and two rear, with all the hardware, adapters, banjo bolts, washers, and line locators, so there's nothing else to source. The hose ends and mounting are vehicle-specific to match your factory design, so it's a direct bolt-on replacement for all the factory flexible brake hoses, using your factory calipers with no modification. It's a straightforward swap, you're replacing the lines one for one and bleeding the system, with no change to your calipers or overall brake configuration.

They're ABS-compatible, and on ABS-equipped cars they also help reduce the pedal chatter you can feel through soft rubber lines.

Fitment

2002-2006 Acura RSX (DC5), Base and Type S

Part number 20104. Complete 4-line kit (2 front, 2 rear) with hardware. Direct fit, works with factory calipers.

This is for the RSX Base or Type S owner who drives the car on the street, at autocross, or on track and wants a firmer, more consistent brake pedal instead of one that goes soft under repeated braking. PTFE-core stainless braided lines that minimize the expansion of the aging rubber, a complete four-line kit with all the hardware, motorsport-grade certification, and a straightforward bolt-on that keeps your factory calipers and brake setup. It won't shorten your stopping distances on its own, but it firms up the pedal and makes hard braking confident and consistent. Bolt them on, bleed the brakes, and feel the difference the first time you push the pedal.

Fits: 2002-2006 Acura RSX (DC5), Base and Type S. Part number: 20104. Type: braided stainless steel brake line kit, complete 4-line set (2 front, 2 rear). Construction: PTFE inner line, braided stainless steel outer, 3,000 psi rated. Benefit: firmer, more consistent pedal that holds up under repeated braking; minimizes the expansion of flexing rubber lines. Includes: 4 lines plus adapters, banjo bolts, washers, and line locators. Install: direct bolt-on, works with factory calipers (no change to brake config). Certification: FMVSS 106, DOT compliant, TÜV approved. Use: street, autocross, and track.