38mm External Wastegate - Black
14 PSI (1 Bar)

Part Number
In stock
38mm External Wastegate - Black
14 PSI (1 Bar)

Aeroflow Performance wastegates are especially designed to maintain set boost levels to protect your engine from overboosting. Aeroflow wastegates feature an internal valve constructed from a high temp NiCrFe based alloy. Other features include a high temperature silicone nomex reinforced actuator diaphragm and stainless steel actuator spring that delivers consistent boost pressure at high temperatures, Nitronic stainless steel is used for the valve seat, and valve bushing which all offer longer product life at extreme temperatures.

Aeroflow wastegates feature water cooling ports ( 2 x M8 x 1.0mm ) for those heavy duty applications. These are optional use and can be disregarded if not required. There are also 3 lower air pressure ports and two top air pressure ports ( 5 x M10 x 1.00mm ) for easy installation this eliminates the need to rotate the actuator top, plugs are included for unused ports. Aeroflow's wastegatescome preset at 1 bar. This can easily be altered by purchasing and installing springs from Aeroflow's accessory range. The wastegate also includes required stainless steel hardware for installation including: valve seat, inlet V-band clamp/flange and outlet V-Band Clamp/flange.

Replacement Springs & Upgrades

AF9552-1101 Inner Spring - Yellow: 10.10 PSI (0.69 BAR)
AF9552-1102 Inner Spring - Green: 6 PSI (0.41 BAR)
AF9552-1103 Middle Spring - Red: 7.80 PSI (0.53 BAR)
AF9552-1104 Middle Spring - Blue: 11.20 PSI (0.77 BAR)
AF9552-1105 Outer Spring - Black: 12.60 PSI (0.87 BAR)
AF9552-1106 Middle Spring - White: 10.30 PSI (0.71 BAR)

AF9552-1201Water fitting to -4AN suits 38mm & 44mm wastegates M8 x 1mm. Sold individually
AF9552-130038mmDiaphragm replacement kit
AF9552-130138mmOutlet flange weld on flange only
AF9552-130238mmOutlet v-band clamp
AF9552-130338mmInlet flange weld on flange only
AF9552-130438mmInlet v-band clamp
AF9552-130538mmInlet seat valve seat only
AF9552-140044mmDiaphragm replacement kit
AF9552-140144mmOutlet flange weld on flange
AF9552-140244mmOutlet v-band clamp
AF9552-140344mmInlet flange weld on flange
AF9552-140444mmInlet v-band clamp
AF9552-140544mmInlet seat valve seat
AF9552-160060mmDiaphragm replacement kit
AF9552-160160mmOutlet flange weld on flange
AF9552-160260mmOutlet v-band clamp
AF9552-160360mmInlet flange weld on flange
AF9552-160460mmInlet v-band clamp assembly
AF9552-160560mmInlet seat valve seat