PRL Motorsports 4-Piston Brake Caliper Kit – 2006+ Honda Civic / 23+ Acura Integra

The design philosophy behind our new 4-Piston Brake Caliper Kit for the 10th and 11th generation Honda Civic centers on intelligent standardization. By utilizing a widely available 312x25mm rotor size—common across various applications including the 10th and 11th Generation civic Si—we ensure not only optimal braking performance but also maximize ease of maintenance and parts accessibility. This approach eliminates the need for proprietary rotors, helping source replacements more quickly and affordably. 

Equally important, the caliper design accommodates the same brake pad profile used in the high-performance FK8 Civic Type R. This strategic decision leverages an existing performance-proven pad format while simplifying logistics for customers. Whether it's for daily driving, spirited weekend use, or track sessions, users benefit from a system engineered with both performance and practicality in mind—delivering OEM-level serviceability without compromise.

The braking system on the Civic Si and Acura Integra was never designed with serious performance driving in mind. The factory single-piston floating caliper gets the job done under light conditions — but once heat builds or pedal pressure increases, it shows its limits fast.

PRL’s 4-Piston Brake Caliper Kit is a purpose-built solution for drivers who demand more. Engineered in-house, this fixed caliper design improves pad contact, pedal feel, thermal stability, and overall stopping confidence — without compromising street drivability.

This bolt-on kit is designed and engineered to work directly with your OEM 312mm rotor and integrates cleanly with the stock hub and knuckle setup. The kit also includes steel braided brake lines, offering you better pedal feel and improved confidence when braking harder at higher speeds. A future larger rotor variant is under consideration, but this initial release focuses on fit, performance, and reliability right out of the box. 

*In order to be compatible with a 355mm rotor variant, installation will require an alternate bracket.

 Quick Specs:

• Caliper Material and Construction: Forged 6061-T6 aluminum, 2-piece body
• Piston Design: 44mm primary / 41mm secondary
  • Aluminum 6061-T6 Billet with vented Type 3 hard anodized pistons
• Bracket Material: CNC-machined 4140 billet steel with electrocoated finish
• Pad Compatibility: FMSI D1001 (F50 / Type R / STI pad shape)
• Rotor Fitment: OEM 312mm x 25mm rotor (10th & 11th Gen Civic Si, 2023+ Integra)
• Weight (per side): Approx. 8.8 lbs with bracket and hardware
• Finish: Hard anodized caliper body for thermal resistance, corrosion protection, and clean aesthetics
• Brake Lines: Kit includes a set of stainless steel braided brake lines (required, not optional)

 Direct Vehicle Fitment:

• 2017–2021 Honda Civic Si (HC10)
• 2022+ Honda Civic Si (HC11)
• 2018+ Honda Accord
• 2023+ Acura Integra (DE4)
• Many other Honda models when using the 312mm Si rotor

Fitment With Rotor Modification:

• 2012-2015 Honda Civic Si
• 2012-2015 Honda Civic EX (282mm)
• 2012-2015 Honda Civic LX (262mm)
• 2006-2011 Honda Civic Si 
• 2006-2011 Honda Civic EX/LX

Note: Designed and engineered to work with Honda OEM spec 312mm rotors. Clearance should be verified with included printable template due to dimensional increases over stock.

PRL Motorsports 4-Piston Brake Caliper Kit – 2006+ Honda Civic / 23+ Acura Integra fits the following vehicle(s):

• 2022 Acura Integra
• 2023 Acura Integra
• 2024 Acura Integra
• 2025 Acura Integra
• 2006 Honda Civic
• 2007 Honda Civic
• 2008 Honda Civic
• 2009 Honda Civic
• 2010 Honda Civic
• 2011 Honda Civic
• 2012 Honda Civic
• 2013 Honda Civic
• 2014 Honda Civic
• 2015 Honda Civic
• 2016 Honda Civic
• 2017 Honda Civic
• 2018 Honda Civic
• 2019 Honda Civic
• 2020 Honda Civic
• 2021 Honda Civic
• 2022 Honda Civic
• 2023 Honda Civic
• 2024 Honda Civic
• 2025 Honda Civic