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The Acura Integra Type R (DC2/DB8 chassis) is a front-wheel-drive icon, revered for its nimble handling, high-revving B18C engine, and balanced chassis. Yet even this legend has a weak point: its factory braking system. While adequate for daily driving, the single-piston sliding calipers and modest 262mm rotors quickly succumb to fade during aggressive street driving, autocross, or track days. A big brake kit (BBK) is the single most transformative upgrade you can make. The StopTech Big Brake Kit, priced around $2,500, is a proven, bolt-on solution that dramatically improves stopping power, fade resistance, and pedal feel. This article provides a detailed, technical breakdown of the kit, its installation, performance gains, and real-world value.
Why the Acura Integra Type R Needs Brake Upgrades
Before diving into the StopTech kit, it is essential to understand why the stock brakes are insufficient for higher-performance driving.
Stock Brake Limitations
The ITR came from the factory with 10.3-inch (262mm) front rotors and single-piston calipers. While lightweight and simple, these components lack the thermal capacity and clamping force needed to manage the car’s 2,600+ pounds (plus driver) from speed. Under repeated hard braking, pad and rotor temperatures spike, causing brake fade—a condition where the friction coefficient drops, requiring more pedal pressure for the same deceleration. Additionally, the single-piston caliper applies uneven pad pressure, leading to accelerated pad taper and rotor wear.
Heat Management Is Key
Braking converts kinetic energy into heat. A track-capable car must dissipate that heat quickly. The stock system’s small, solid rotors (or thin vented on later years) simply cannot shed heat fast enough. This leads to boiling brake fluid, glazed pads, and warped rotors. An upgrade to a big brake kit addresses all of these failure modes head-on.
StopTech Big Brake Kit Overview
StopTech is a well-respected brand in the high-performance braking industry, known for their engineering precision and direct-fit designs. Their Big Brake Kit for the Acura Integra Type R is a comprehensive system designed to bolt on to the factory knuckles with minimal modification.
What's Included in the Box
- Two-piece front rotors: Typically 332mm x 32mm (or optionally 355mm for even more thermal capacity). These are directional, slotted, and feature a lightweight aluminum hat that reduces unsprung weight compared to a one-piece iron rotor of the same diameter.
- 4-piston fixed calipers: StopTech uses a ST-40 (or ST-60 for 355mm) caliper with stainless steel pistons and high-temperature seals. The fixed design provides even pad pressure and superior stiffness.
- Performance brake pads: The kit includes StopTech Street Performance pads (ceramic compound) suitable for daily driving and light track use. These are bedded and matched to the rotor material.
- Stainless steel braided brake lines: These replace the rubber OEM hoses, reducing expansion under pressure and improving pedal feel.
- Mounting brackets and hardware: CNC-machined brackets relocate the caliper to match the larger rotor position. All bolts are grade 10.9 or higher.
- Instructions: Detailed installation guide with torque specs.
Key Specifications
| Component | Stock | StopTech 332mm Kit |
|---|---|---|
| Rotor Diameter | 262 mm | 332 mm (11.8 in) |
| Rotor Thickness | 20 mm | 32 mm |
| Caliper Type | Single-piston sliding | 4-piston fixed (ST-40) |
| Piston Diameter | N/A (single 54mm) | 4 x 36 mm (or staggered sizes) |
| Brake Pad Area | ~ 85 cm² | ~ 150 cm² (larger pad) |
| Weight (per side) | ~ 22 lbs (rotor + caliper) | ~ 26 lbs (rotor + caliper + bracket) |
Note: The 355mm kit adds further weight and requires 17-inch wheels minimum. The 332mm kit fits most 16-inch wheels with proper offset, making it the more popular choice for street/track dual duty.
Installation Considerations
Installing the StopTech BBK is a straightforward weekend job for someone with intermediate mechanical skills. However, there are critical details that must be addressed to ensure safety and optimal performance.
Wheel Fitment
Clearance is the primary concern. The 332mm rotor requires a minimum 16-inch wheel diameter, but the wheel’s spoke profile must clear the caliper as well. Many aftermarket wheels (e.g., 15x7 +35 offset) will not fit. StopTech provides a template to check clearance. Common wheels that fit include OEM ITR 16-inch (USDM and JDM), many Enkei RPF1 sizes, and others with a flat spoke design. Always test fit before committing to the kit.
Master Cylinder and Brake Bias
Adding larger calipers increases the fluid volume required per stroke. The stock ITR master cylinder (15/16-inch bore) is adequate for the 332mm kit with 4-piston calipers, but the brake pedal will travel slightly further before the pads engage. This is normal. If you notice a very low pedal after installation, bleed the system thoroughly and check for air in the lines. Some owners upgrade to a 1-inch bore master cylinder from a 1997-2001 Honda Prelude or NSX for a firmer pedal, but it is not mandatory. Brake bias remains close to stock because the kit maintains the same hydraulic ratio (caliper piston area vs. rear) as the factory setup.
Step-by-Step Installation Highlights
- Remove the wheel and factory brake components (caliper, rotor, pads, and line).
- Clean the hub flange and inspect wheel bearings.
- Install the new two-piece rotor onto the hub. Ensure the directional vanes point backward (part number on outer face should be readable).
- Mount the StopTech caliper bracket to the knuckle using the supplied bolts. Torque to 80 lb-ft.
- Slide the caliper over the rotor and secure with the guide pin bolts (torque 35 lb-ft).
- Connect the stainless steel brake line. Use new copper or aluminum washers. Torque the banjo bolt to 25 lb-ft.
- Bleed the brakes using a pressure bleeder or two-person method. Start with the farthest wheel (rear right) and work toward the front left. Use high-quality DOT 4 fluid such as Motul RBF 600 or Castrol SRF for track use.
- Bed in the pads as per manufacturer instructions: 10 moderate stops from 40 mph to 10 mph, followed by 5 near-panic stops from 60 mph, then cool down.
Performance Gains on Street and Track
After upgrading to the StopTech BBK, the difference is immediately noticeable.
Stopping Distance
Independent tests show a reduction of 10-15 feet in 60-0 mph stopping distances. More importantly, the repeatability of these stops is vastly improved. A stock ITR will show significant fade after three hard stops; the StopTech kit can handle 10+ without degradation.
Fade Resistance
The combination of larger, vented, and curved-vane rotors (for better airflow) and a fixed caliper with high-temperature fluid keeps temperatures manageable even during 20-minute track sessions. The rotor’s mass and thermal capacity absorb heat, while the aluminum hat reduces heat transfer to the hub and wheel bearings.
Pedal Feel and Modulation
The 4-piston caliper provides a firmer, more progressive pedal. The stainless steel lines eliminate the spongy feeling associated with OEM rubber hoses. This allows for finer control when threshold braking—critical for trail-braking into corners. Drivers report increased confidence and ability to brake later.
Cost-Benefit Analysis: Is $2,500 Worth It?
At first glance, $2,500 is a significant investment—roughly 10-15% of the car’s current market value. Let’s break down the value proposition.
Initial Cost vs. Long-Term Ownership
Total cost includes the kit ($2,500), optional professional installation ($300-500), and fluid ($30-50). That is roughly $3,000. Over five years of ownership, this works out to $600/year—less than the cost of a single track day. Consider that the rotors and pads in the kit have a much longer service life than stock parts under hard use. Rotors can survive multiple pad changes (e.g., 3-4 sets) before needing replacement, lowering the cost per mile.
Comparison to Other Upgrades
Common alternatives:
- Aftermarket pads + slotted rotors: ~$500. Improves fade a bit but does not solve thermal capacity or pad taper. Still a sliding caliper.
- Acura NSX front calipers (4-piston) with bracket adapters: ~$800 used, plus custom lines and rotors. A popular budget swap but requires fabrication and may not offer the same rotor size or pad choice as the StopTech kit.
- Wilwood or Brembo aftermarket kits: Usually $2,000-$3,500. StopTech is in the middle of the pack in cost and reliability.
The StopTech kit offers a proven, low-hassle solution with excellent customer support and replacement parts readily available. For dedicated track enthusiasts, the improved consistency alone justifies the price.
Alternatives to Consider
While StopTech is an excellent choice, other options exist depending on your budget and goals.
Brembo GT Kit
Brembo’s offering for the DC2 Integra Type R uses 4-piston monobloc calipers and 332mm rotors. Cost is approximately $3,500. The calipers are lighter and slightly stiffer than StopTech’s, but pad replacement cost is higher.
Wilwood AERO6 Kit
Wilwood offers a 6-piston caliper with 12.19-inch rotors for around $1,800. The caliper is physically large and may require a specific wheel offset. Pad compound selection is excellent, but the rotor hat is less robust than StopTech’s.
OEM+ Hybrid Swap
If $2,500 is out of reach, consider sourcing bigger OEM Honda calipers (e.g., Legend 2-piston calipers) and pairing them with Prelude VTEC rotors. This hybrid approach costs under $500 but requires welding or adapter brackets and does not provide the same thermal capacity as a true BBK. It is a stepping stone, not a replacement.
Maintenance Tips for Big Brake Kit Longevity
Once installed, proper care extends the life of your BBK.
- Pad and rotor bedding: Follow the specific bedding procedure for your pad compound. Failure to bed properly results in glazed pads and reduced stopping power.
- Fluid flush: Brake fluid absorbs moisture, lowering its boiling point. Flush with fresh DOT 4 every 12 months or after 3 track days.
- Piston inspection: The stainless steel pistons in StopTech calipers resist corrosion, but the dust boots can tear. Inspect annually and replace if cracked.
- Rotor thickness: Measure rotor thickness with a micrometer. Replace when below the minimum stamped on the rotor edge (usually 30 mm for a 32 mm rotor).
- Pad life: Street pads (like the included StopTech Street) last 20,000-30,000 miles. Track pads (e.g., Carbotech XP10) will last 2-4 track days.
For those taking the car to track days regularly, consider swapping to a dedicated track pad before the event and using the street pads for daily driving. This maximizes both safety and pad life.
Final Thoughts
The StopTech Big Brake Kit transforms the Acura Integra Type R from a capable street car into a truly track-ready performer. For $2,500, you get a system that reduces stopping distances, eliminates fade, and provides the driver with confidence and control that the factory brakes cannot match. While the installation requires careful attention to wheel fitment and bleeding procedures, the result is a bolt-on upgrade that elevates the entire driving experience. If you regularly drive your ITR enthusiastically—whether on canyon roads or at a road course—this is one of the best modifications you can make.