If you want a firmer feel for your Inferno GT3, the Kyosho IG159-550 is a solid choice. This heavy-duty orange coil is designed specifically for the IG158 Threaded Big Shock Set and is the stiffest option in the lineup. It is aimed at racers who need stronger spring rate for controlled handling at speed.
The orange spring is notable for its higher stiffness rather than just its finish. Compared to softer red, purple or pink springs, it reduces chassis roll and gives more direct steering response. The durable construction helps keep consistent performance during repeated race runs.
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