45mm High Pressure Spring kit, please call or email prior to purchasing

This includes 3 springs, 

When used in the 45mm wastegate you should achieve these boost levels depending on the variation of boost vs exhaust backpressure pre-turbine. Because we are unable to determine every combinations pressure ratios we have put a range on the ratings.

Silver: 8.25psi - 10.5psi Typical tested average 9psi

Green: 12psi - 16psi Typical tested average 14.5psi

Orange: 18psi - 22.5psi Typical tested average 20.5psi