{"product_id":"koyo-red-radiator-cap","title":"Koyo Hyper Red Radiator Cap (SK-C13)","description":"\u003cp\u003eKoyo 1.3 bar high pressure red radiator cap fits all Koyo aluminum radiators with fill necks and most aftermarket radiators. Fits most Mitsubishi, Subaru and Nissan factory radiators as well.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"vehicle_application\"\u003eFits all Koyo Aluminum Radiators with Fill Necks\u003cbr\u003e1992-2015 Evolution I-X\u003cbr\u003e1991-1999 3000GT VR-4\u003cbr\u003e1991-1996 Stealth R\/T\u003cbr\u003e1990-1999 Eclipse GST\/GSX\u003cbr\u003e1990-1998 Talon TSi\u003cbr\u003e1990-1994 Laser RS\u003cbr\u003e1991-1993 Galant VR4\u003cbr\u003eSubaru WRX \u0026amp; STi (2002-2022+)\u003cbr\u003eNissan R35 GT-R\u003cbr\u003eNissan 350Z \u0026amp; 370Z\u003cbr\u003e1988-1991 Honda Civic\u003cbr\u003e1990-1993 Acura Integra\u003cbr\u003e1992-2001 Honda Prelude\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003e\u003cem\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\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eWhy is increased Pressure Better?\u003c\/span\u003e\u003cbr\u003e\u003cem\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\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/stmtuned.com\/collections\/koyo-products\" target=\"blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50565593760086,"sku":"KOY-SK-C13","price":42.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/SK-C13-koyo-red-radiator-cap-1.jpg?v=1749226892","url":"https:\/\/www.speed-addicts.com\/en\/products\/koyo-red-radiator-cap","provider":"Speed Addicts","version":"1.0","type":"link"}