| PRO-RACE IDA 55/53/50 Tapered Bore Throttle Body
http://www.efihardware.com/products/726/pro-race-IDA-555350
55/53/50 - 55mm at ram tube face, 53mm across the butterfly & 50mm at the manifold face.
IDA throttle bodies feature 2 injector bosses per throat. Ram tube flanges are 70mm PCD (vacuum port for map sensor optional extra)
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