{"product_id":"koyo-hyper-cap-shallow-plunger-1-3-bar-blue-racing-radiator-cap-sk-d13-fits-subaru-brz-toyota-gt86-only","title":"Koyo Hyper Cap, (Shallow Plunger), 1.3 Bar, Blue Racing Radiator Cap, (SK-D13) Fits Subaru BRZ, \u0026 Toyota GT86 Only","description":"\u003cp data-mce-fragment=\"1\"\u003ePart # SK-C13 (RED) Deep plunger\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003efits all Koyorad radiators\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003ew\/ filler necks\u003cbr data-mce-fragment=\"1\"\u003ePart # SK-D13 (Bottom photo BLUE) Shallow plunger\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eonly fits OEM FR-S, BRZ, and GT86\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eExtract every ounce of cooling efficiency from Koyorad All Aluminum Performance Radiators with a genuine Koyorad Hyper Cap!  This Koyorad Hyper Cap withstands an increased valve pressure rating of 1.3kgf\/cm2 (1.3 bar) (18.9 psi) (130 kPa) which increases the boiling point of water and relieves high performance engines of excessive heat.   A genuine Koyorad Hyper Cap is recommended for use with every Koyorad All Aluminum Performance Radiator (when applicable).  This Koyorad Hyper Cap is manufactured in Japan from high-quality components to ensure longevity and performance from your Koyorad Racing radiator.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWhy is increased Pressure Better?\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIt’s simple.  When water is pressurized, its natural boiling point is increased.  Most modern vehicles are equipped with a 0.9 Bar pressure cap.  Koyorad’s Hyper Cap is rated at 1.3 Bar which increases the boiling temperature of your coolant to 267.80 degrees Fahrenheit.  That is nearly a 56-degree increase over water's normal boiling point.  By increasing the boiling point of water, an engine's cooling system will have the added heat capacity, maximizing performance under ever-changing racing conditions.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg class=\"img-fluid\" src=\"https:\/\/nzairfilter.co.nz\/images\/CKEDIT\/image-48.jpeg\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/nzairfilter.co.nz\/images\/CKEDIT\/image-48.jpeg\"\u003e\u003cimg class=\"img-fluid\" src=\"https:\/\/nzairfilter.co.nz\/images\/CKEDIT\/image-47.jpeg\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/nzairfilter.co.nz\/images\/CKEDIT\/image-47.jpeg\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cimg class=\"img-fluid\" src=\"https:\/\/nzairfilter.co.nz\/images\/CKEDIT\/image-49.jpeg\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/nzairfilter.co.nz\/images\/CKEDIT\/image-49.jpeg\"\u003e\u003cimg class=\"img-fluid\" src=\"https:\/\/nzairfilter.co.nz\/images\/CKEDIT\/image-50.jpeg\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/nzairfilter.co.nz\/images\/CKEDIT\/image-50.jpeg\"\u003e\u003c\/p\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":44265627123965,"sku":"SK-D13","price":49.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/0417\/0749\/files\/image_63_ceaa7d41-579e-47d8-928f-0bba95ba80df.jpg?v=1706871966","url":"https:\/\/prolinkperformance.com\/products\/koyo-hyper-cap-shallow-plunger-1-3-bar-blue-racing-radiator-cap-sk-d13-fits-subaru-brz-toyota-gt86-only","provider":"Prolink Performance","version":"1.0","type":"link"}