| PRO-RACE throttle body DCOE sizes 45mm to 52mm
https://www.efihardware.com/products/12/throttle-body-pro-race-DCOE-sizes-45mm-to-50mm
Pro-Race DCOE Throttle Body. These are our flag ship model with all the features of the Pro Street version plus tapered bores and machined flat sections across the butterfly shaft. These additions aid the scavenging effect netting torque and power gains over parallel bores. These are available in sizes: 45/43/40, 48/45/43, 50/48/45, 52/50/47 & 55/52-Striaght
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