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.

Kinugawa Japan TD04HL-20T GTX Legacy BP5 / BL5 twin scroll upgrade turbo
Gasket - T4 exhaust housing inlet twin entry
Turbo oil and water line kit EVO 4-9
Kinugawa -4AN female to -6AN male adapter fitting
Kinugawa Japan CT26 3SGTE SW20 ST185 60-1 upgrade kit
Turbosmart Dualport smart port BOV - Nissan R35 GTR kit
Stainless Steel T-bolt clamp (to suit 1.50" hose)
V-band flange and clamp set (4.00")
Turbo oil and water line kit Nissan S15 T28 BB Kinugawa (Top Mount Turbo)
Kinugawa Japan 20G upgrade kit for EVO 1-3 TD05
Kinugawa Japan TD04-15T 4cm 5-bolt 4D56T Pajero upgrade
Banjo fitting M14x1.5 to -4AN (Oil feed)
Turbo oil feed kit BA / BF Falcon XR6 turbo
Kinugawa Japan 20G upgrade kit for EVO 1-3 TD05 w/ Actuator
Turbosmart Vee-Port Pro BOV Subaru fitment
Banjo bolt 7/16 (ball bearing oil feed)
Flywheel - Caldina GTT - Lightweight Race 5.2KG
Clutch kit Toyota ST215w Caldina Heavy Duty
Turbosmart Dualport BOV - Nissan fitment
Kinugawa TD04 Actuator (4M40T) Billet (adjustable) 