Introducing the range of slide throttles for four & six cylinder engines; M10, M30, S14 & S38. Cast in LM25 alloy, magnesium alloy by special order, slide plate in polished stainless running on PTFE seal/bearing arrangement. Slide throttles offer a no compromise solution to maximum volumetric efficiency of your engineAll slide throttles available with the unique & original ‘Servo-Slide’ system; patent under application. This system, similar in operation to servo assisted braking systems, allows excellent throttle modulation & consequently engine drivability, previously a stumbling block for slide throttle systems. Slide throttles are also available with idle by-pass system; this facilitates sensible engine idle speed capability & cylinder balancingNote: S54 slide throttle under development, port design undergoing flow testing. M20 & 42 by request.Also available; linkage kits, machined from billet ram pipes in stock form or machined to your own requirements, air intake filtration system, injectors both mechanical & EFI.