Replacing the wastegate spring is the easiest cheapest and a very accurate way of raising your boost level. These genuine Turbosmart springs suit their 38mm, 40mm and 45mm gates. Available in 5, 7, or 10psi options (please specify when ordering). To gain other pressures you need to combine multiple inner, outer and middle springs. Need help? Please email us! Please view the spring pressure chart here: SPRING PRESSURE CHART Note: Image for illustration purposes only, not a photo of the actual item.

4G63 Turbo dump pipe EVO 7-9 Kinugawa
Clutch kit Toyota ST215w Caldina Heavy Duty 5 Puk
BC Camshafts 2JZGTE stage 2 / 3 / 4
Flywheel - Caldina GTT - Lightweight Race 5.2KG
Turbo oil feed kit Subaru TD05H TD06 AVCS KIT
V-band flange and clamp set (4.00")
Turbo oil feed kit TD05/TD06 EVO 4-9 oil filter housing type - Kinugawa
Turbosmart Kompact Plumb-Back BOV - Subaru
Turbo oil feed kit BA / BF Falcon XR6 turbo
Short shifter - Toyota AE86 Levin Trueno Corolla
Znoelli SP500 fast road pads (rear)
Tial 60mm wastegate (silver top) WITH FLANGES 