Forge Motorsport valve small spring tuning kit

The kit includes four springs of different rates for tuning various Forge Motorsport products. It can also be used with the FMDVTUN spring kit to tune our twin-piston atmospheric blow-off valves.

Spring colour coding

• GREEN: softest spring
• YELLOW: approximately 25% stronger than the standard spring
• BLUE: approximately 50% stronger than the standard spring
• RED: hardest spring, approximately 75% or up to 100% stronger depending on the original spring supplied

The values given are for guidance only and depend on the original spring supplied.

Warning: If the spring is not correctly selected according to the requirements of the individual engine, serious or fatal damage to the engine and associated components may occur.

Important: The spring colours shown in the images may differ from the springs received. All spring kits are new but are not painted; the colour serves as an identification mark.