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RY31 4CYL (2
6L VR6 FSI engines
Qty: 0 or 1 or 2 depending on how many Walbro GSS342 or AEM 50-1200 pumps will be used
Stainless Steel Hardware and Viton O-rings
Advanced 3D scanning tools and cutting-edge software provide our engineers with a high-resolution digital model of the Audi B9 S4 chassis
Supertech Manganese Bronze Intake Valve Guide 6mm Stem Set of 12 Shifter Linkage/Cable Bushes RY31 4CYL (2Our Valve Guides are precision machined from high quality Manganese Bronze material. Supertech Valve Guides are designed to be used in combination with our low friction black nitrided valves to provide the best solution for both performance and durability. For exhaust valve guides designed to be usded for high powered engines that need a better thermal transfer coefficient, we use a copper alloy guide. Copper has about a 3 times higher thermal