Extract every ounce of cooling efficiency from Koyorad All Aluminium 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 Aluminium 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.
Why is increased Pressure Better?
It’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.
KOYORAD: Performance radiator cap
KOYORAD Aluminum Race Radiators for Subaru Forester are Heliarc welded creating the strongest aluminum to aluminum bond, resisting damage from vibration, road debris, and the elements. The KOYORAD Aluminum Race Radiator also feature Billet filler necks as for strength, durability and better sealing and Subaru Forester OEM Specific Mounting for Quick and easy installation.
Ideal for use both on and off the track, KOYORAD Performance aluminium radiator improves your engine cooling by upto 50%. Made from aviation grade aluminium, Heliarc welded by hand and with a high quality polished finish, it goes directly in place of your existing radiator without any modification : using the same mounting brackets, stock fans and/or shrouds, sensors, drain plugs, etc.
KOYORAD Aluminum Race Radiators for Subaru Spec.
- 100% made in Japan
- Ideal for daily and track use
- Subaru OEM Specific Mounting
- Direct fitment, Quick and easy install
Performance Koyo Radiator Fitment:
- All Koyorad Aluminum Race Radiators
Brand: KOYORAD
Part Number: SK-C13
Stock images used. Actual product may vary.
About KOYORAD Aluminum Race Radiators
Koyo | Koyorad Aluminum Race Radiators Have over 50 years of manufacturing experience developing a wide range of reliable, high quality radiators. Koyo | Koyorad is well known by all Motorsport and tuning enthusiasts around the world for QUALITY and RELIABILITY. Koyo | Koyorad Aluminum Race Radiators are made exclusively in Japan.
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