These Wilwood Forged Superlite Internal (FSLI) brake calipers feature internal fluid ports that eliminate the external fluid crossover tubes, along with any potential problems that could arise from a damaged tube. The transfer tube has been replaced with two additional bleed screw assemblies, which allow this group of symmetrical piston bore models to be mounted either on the right or left in a leading or trailing position. They are also stress-flow forged from premium-grade aluminum alloy billets. Stress-flow forging realigns the metal's internal grain structure to flow within the contour of the caliper body. This process eliminates the stresses and interruptions to the internal grain structure that occur when machining a straight block billet. The FSLI body design is a highly efficient product of computer-generated solid modeling and stress analysis technology.