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.

BC Camshafts 1JZGTE stage 2 / 3
Banjo fitting M16x1.5 to -6AN
Turbosmart Dualport smart port BOV - Nissan R35 GTR kit
Banjo bolt M12x1.5 (Oil feed)
V-band flange and clamp set (2.25")
Prosport USA fuel press. gauge - Premium Peak Warn
BC Camshafts H22a stage 2 / 2+ / 3
Yellowspeed Brake Kit 330mm 6-pot (17") Front
Turbosmart Kompact Plumb-Back BOV - Subaru Mazda
Yellowspeed Brake Kit 330mm 4-pot (17") Rear
Radiator Cap Cover - Violence
Clutch kit Subaru WRX/STI GDA\GDB Sport Ceramic
Wastegate dump pipe (screamer pipe) 40mm 