throttle body pro-street DCOE sizes 40mm to 48mm

Pro Street Series are available in 40, 45, 48. Housing to shaft lip seals installed behind bearings for extra sealing under high vacuum
Idle by pass air bleed screws for super smooth idle and to aid emissions tuning.
O'ring seals on front and rear mounting faces. (Vacuum port for map sensor optional extra)

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Product Details

Manufactured from 601 Cast aluminum and are heat treated before being CNC machined. The butterflies are measured for each bore & precision machined to a 0.0005" tolerance. Butterflies are secured to centreless ground brass shafts with split screws to ensure reliability and serviceability. All are fitted with bearings rather than bushes to eliminate axial shaft movement.

We now recommend

and use SKF bearings.