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.

Suzuki G13 turbo manifold cast T25
SR20 turbo dump pipe S13, S14 T25 atmos venting
Zero style sports mirror mounting brackets (pair)
Wastegate dump pipe (screamer pipe) 40mm
Banjo fitting M16x1.5 to -6AN
GFB EX38 38mm V-band wastegate
Kinugawa T28 Actuator (S14 / s15) Billet (adjustable)
Turbo oil feed fitting M12x1.25 -4AN Kinugawa
Dash mount triple gauge holder - 60mm
Yellowspeed Brake Kit 356mm 4-pot (18") Rear
Hybrid X01-R intercooler kit - SF5 Forester
Hybrid GT2 spec intercooler kit - Legacy BL5 GT B4
SSQV flange - hose fit 25mm
BC Camshafts VQ35 stage 2 / 3
Tial 44mm wastegate (silver top)
GFB EX50 50mm V-band wastegate
Gasket - T3 (T3/T4) exhaust housing inlet
Hybrid GT2 spec intercooler kit - Galant Legnum vr4
Turbo oil feed kit TD05/TD06 EVO 4-9 oil filter housing type - Kinugawa
Turbo oil return fitting kit TD04 TD05 TD06 Kinugawa onepiece
Turbosmart wastegate spring - 38mm / 40 / 45mm gates
Hybrid GT2 spec intercooler kit - Toyota Hiace
Hybrid X01-R intercooler kit - Toyota Starlet
D2 Racing coilovers - super street series
Delta fin Intercooler - 300x160x65
Tial 60mm wastegate (silver top) WITH FLANGES