FORGE FMSS114 Standard Silver Piston Valve Small Bottom Spring ymm_69 and it has been designed

and it has been designed to meet ECE type approval

GM 12346074

as in the stock configuration – are calibrated to tailor the sound

making it suitable for professional racing systems where thermal expansion and component longevity are critical

The MK5 Supra Eventuri intake has been developed to provide the turbo with a less restrictive flow path whilst maintaining low inlet temperatures

FORGE FMSS114 Standard Silver Piston Valve Small Bottom Spring ymm_69 and it has been designedThese are the individual springs sold in our FMTVTUN kit. Please select the colour you require using the options above. Valve Spring Colour Coding: The weakest spring is GREEN, followed by YELLOW, BLUE, and RED which is the strongest. Depending on the supplied original fitment, this represents an increase of 25%, 50%, 75%, and 100% respectively. The standard spring option is for customers who wish to replace a broken idle spring in their twin piston