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6L L4 (4AFC) 08/89-91
operation and reliability in even the most extreme environments
This Improved working ratio is achieved through an increase to the effective surface area of the diaphragm & revisions to the actual springs fitted resulting in greater leverage of the forces the actuator is working against (boost and backpressure) while still being super-responsive
that are a common size bearing that can be found at your local bearing supplier
257-C | B58 Gen 1 R32 6L L4 (4AFC) 08/89-91Stage 3 drag racing cams for professionally built B58 Gen 1 engines making 1200hp+. Turbo sizing 72mm+ on high boost. Fuel type ethanol blend or methanol. Must have valve spring upgrade
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