The most effective brake refresh for a 2004 to 2007 STI replaces three parts at the same time: Goodridge stainless steel lines for a firmer pedal, Hawk HPS 5.0 pads for stronger stopping power, and DBA T3 slotted rotors for consistent heat and dust control. Doing them together means one brake bleed, one bed-in procedure, and pads and rotors that wear in as a matched pair. All three parts fit the 2004 to 2007 STI, and that shared fitment is the reason this trio works as a set.
Most owners upgrade brakes one part at a time, and each single upgrade helps a little. This trio suits the owner who wants a complete, correct brake job rather than a partial fix. Fresh pads on worn rotors bed in poorly, and new rotors on aging rubber lines still feel spongy. Treating the system as one job fixes each weak point in the same weekend and removes the guesswork about which part is holding the pedal back.
Check Fitment First: This Trio Is a 2004 to 2007 STI Setup
Each part covers a different range of years, and the range they share is the 2004 to 2007 STI. The Goodridge kit fits the 2002 to 2007 WRX and the 2004 to 2007 STI. Hawk’s pads fit the Brembo front calipers on the 2004 to 2017 STI, and the DBA rotor fits the 2004 to 2012 STI with Brembo front calipers.
Owners of a later STI can still use some of these parts, since the pads cover the 2004 to 2017 STI and the rotor covers the 2004 to 2012 STI. The brake lines are the limit, because the Goodridge kit here only covers 2007 and earlier. A WRX from the same years can use the lines, while the Brembo pads and rotors in this list belong to the STI.
Goodridge G-Stop Lines: The Firmer Pedal
Factory rubber brake lines expand slightly under hard braking, which shows up as a soft, spongy pedal right when precision matters most. The Goodridge G-Stop Stainless Steel Brake Line Kit replaces every rubber line with stainless braided hose over a PTFE inner tube.
The kit includes all four lines, front and rear, along with the banjo bolts, washers, and line locators needed for a direct OE style install. Goodridge pressure tests every kit at the factory, the kit is DOT compliant, and a Goodridge lifetime guarantee backs it.
Braided lines change pedal feel and consistency more than they change stopping power. Opening the lines also means the whole system needs a bleed afterward, which is the best reason to do the lines in the same session as the pads and rotors.
Hawk HPS 5.0 Pads: More Bite Without a Race Pad’s Compromises
The Hawk HPS 5.0 Front Brake Pads use a Ferro-Carbon compound, and Hawk rates them at 20 to 40 percent more stopping power than a standard replacement pad. They run quiet with minimal dust, and the pedal feel stays strong whether the pads are cold or repeatedly loaded on a spirited drive.
One set covers the front axle and fits the Brembo front calipers that come on the STI. The pads are made in the USA and are not compatible with carbon ceramic rotors, which does not matter for the iron rotors in this trio. Owners comparing compounds can read the best brake pads guide for street, track, and daily driver use to see where HPS 5.0 sits among the options.
DBA 4000 T3 Slotted Rotors: The Rotor That Matches the Pads
The DBA 4000 Series T3 Slotted Front Rotor is a direct, single piece replacement built from high carbon, heat treated iron. Its T3 design adds tri-symmetrical slots that give brake dust and gas more places to escape, so the pad surface stays cleaner and the pedal feels more consistent under hard use.
DBA’s Kangaroo Paw ventilation improves heat dissipation, and the 10 stud hole design bolts onto the STI’s Brembo front brakes. A front axle needs a rotor on each side, so confirm the quantity on the product page before ordering. Replace rotors as a left and right pair so both sides wear and bed in the same way. Owners curious about DBA’s lower cost slot pattern can compare it in the DBA T2 slotted rotors review.
Why Install All Three Together
The calipers have to come off for pads and rotors anyway, and the brake lines connect right at those calipers. Swapping the lines during that same job costs almost no extra labor, and a single bleed at the end covers everything. Changing the parts on separate weekends would mean bleeding the system again after the lines and bedding in new pads twice.
The typical order of work is lines first at each corner, then rotors and pads, then a full flush and bleed with fresh brake fluid. New pads then need bedding in against the rotors they will run on, following the pad maker’s procedure. Skipping that step is the most common reason a fresh brake job feels weaker than expected.
A complete refresh also makes the result easy to judge. With every part new, the pedal feel reflects the whole system rather than the weakest leftover component, so any remaining issue points to a clear cause. It also resets the maintenance clock, because the lines, pads, and rotors then age together and come due for inspection at the same time instead of on three separate schedules.
Where This Fits in a Bigger STI Build
Brakes matter more as power climbs, since every added horsepower is speed the car has to shed later. Builds following the reliable 400whp EJ257 build recipe or the perfect street STI build should treat brakes as part of the same plan as power. The same idea shows up in supporting mods for big turbo builds, where stopping power sits beside fuel and cooling upgrades.
Track days raise the stakes further, because repeated hard stops expose fade and pedal softness that street driving never reveals. How much track use changes what a WRX or STI needs explains where brakes land on that list. Owners exploring the rest of the STI parts catalog can start at the Subaru STI parts page or the STI bolt on upgrades hub.
Other Cars and Other Parts
A 2008 or newer STI, or any WRX, needs a different combination. Later cars use different brake line kits and, in some years, different pads and rotors, so matching parts to the exact model year matters more than matching a brand. Owners comparing pads for those cars can read EBC Redstuff versus Hawk HPS 5.0 for the WRX. Everything else in the brake lineup lives in the brake pads category, the brake rotors category, and the brake kits category.
Frequently Asked Questions
Can I replace brake lines, pads, and rotors in the same job?
Yes, and doing them together is the most efficient way. The calipers are already off for the pads and rotors, and a single fluid flush and bleed at the end covers all three changes.
Will this brake refresh fit my 2008 or newer STI?
Only partly. The Goodridge lines here fit the 2004 to 2007 STI and the 2002 to 2007 WRX, so a later STI needs a different line kit. Hawk’s pads fit the 2004 to 2017 STI with Brembo calipers, and the DBA rotor fits the 2004 to 2012 STI.
Do stainless steel brake lines improve stopping distance?
Braided lines mainly firm up the pedal and make it more consistent, because they do not expand under pressure the way rubber lines do. Stopping power itself comes from the pads and rotors.
Do I have to replace the rotors every time I change pads?
Not always, but new pads bed in best against fresh rotors. Rotors that are worn near their minimum thickness or that show grooves or heat damage should be replaced with the pads.
Are the Hawk HPS 5.0 pads good for daily driving?
Yes. HPS 5.0 is a street friendly compound that runs quiet with minimal dust while still offering a real gain in stopping power for spirited driving.
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