Kelford Cams Performance Beehive Valve Springs - GR Yaris Dress Up we ensure these are the

we ensure these are the best shifters they can be

The standard valves are often not up to the task of eliminating damaging compressor surge

A total exhaust system

preventing any chance of air entry into the cooling system and a sight glass allows for quick checks to the fluid level

ultimately resulting in leaks

Kelford Cams Performance Beehive Valve Springs - GR Yaris Dress Up we ensure these are theGR Yaris G16E GTS Extreme beehive valve spring and titanium retainer kit. Remove OEM base and fit supplied base. Designed for professionally built race engines running big boost and high RPM, but a must have if you're running anything over 1. 6 bar of boost. Will support 65psi and 11,000RPM. Intake: 125lb seat pressure at 35. 0mm installed height. 258lb at 12. 0mm valve lift. Exhaust: 110lb seat pressure at 36. 7mm installed height. 232lb at 11. 5mm