Koyorad Radiator Cap (Red / 1.3 Bar) GruppeM Key Benefits and Performance Gains:

Key Benefits and Performance Gains:

Never be without that trusty 10mm again

Configurable Maximum Advance

At the heart of the system is a bespoke prepreg carbon fibre airbox enclosure

Idle Control

Koyorad Radiator Cap (Red / 1.3 Bar) GruppeM Key Benefits and Performance Gains:The Koyorad hyper cap is crafted in Japan from high quality materials to ensure longevity and performance from your Koyorad Racing Radiator. The 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. These are highly recommended for use with every Koyorad Aluminium Radiator (when applicable). Which Colour