{"product_id":"radi-cal-competition-brake-kit-front-372x34mm","title":"Radi-CAL Competition Brake Kit Front 372x34mm","description":"The AP Racing by Essex Radi-CAL Competition Brake Kit provides a substantial upgrade for the front braking system of 2002-2021 Subaru WRX and STI vehicles. This kit incorporates AP Racing's advanced CP9660 Radi-CAL calipers, renowned for their patented asymmetrical design that enhances stiffness and efficiency. The calipers are paired with large 372x34mm, 72-vane AP Racing discs featuring a J Hook slot design, which contributes to improved heat evacuation and braking performance.\n\nDespite a significant increase in disc size, the kit achieves several pounds of unsprung weight reduction, benefiting overall vehicle dynamics. The pistons are precisely sized for seamless integration with the OEM master cylinder and ABS system, ensuring reliable performance without requiring modification to these core components.\n\nIncluded in the kit are one pair of AP Racing CP9660 Radi-CAL Pro5000R six-piston calipers, one pair of 372x34mm AP Racing CP7177 72-vane J Hook racing discs with fully floating 6061 hard anodized aluminum hats and attachment hardware, caliper mounting brackets, Spiegler Stainless Steel Brake Lines with an abrasion-resistant coating, and detailed installation instructions. It is important to note that brake pads are not included, allowing customers to select their preferred compound. Optional Pad Tension Kits are available to reduce pad rattle and NVH. A disc pre-burnishing service is also offered for immediate track readiness.","brand":"AP Racing","offers":[{"title":"Default Title","offer_id":52686956101944,"sku":"13.01.10125","price":5299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660183373.jpg?v=1784878892","url":"https:\/\/store.motormia.co\/products\/radi-cal-competition-brake-kit-front-372x34mm","provider":"MOTORMIA","version":"1.0","type":"link"}