T100 TO 4” HC5A Large Transition Adapter 3D
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Transitions from rectangle turbine inlet to 4″ schedule 10 (4.26″ ID) round. Fits exhaust inlet flange on large Holset Turbine housings. Flange is 3D profiled, machined in-house and contoured to maximize air flow. Weldable mild steel. Fits T100 HC5A large foot 51cm, 58cm, 59cm, and 69cm turbine housings. Used for staged or compound turbos.Be sure to check the “Stud and Nut Kit” checkbox if you want to add four M10 studs and nuts to mount the turbo with.
Also available in 3.5″ schedule 10 (3.76″ ID).