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GFB 4003 upgrade kit converts a 4003 shifter into a 4002 configuration to shorten shift throw while retaining GFB's adjustable linkage philosophy that keeps stock gearstick height and avoids transmission tunnel modifications. The bolt‑on upgrade improves shift engagement and follows GFB's easy‑install approach; 6‑speed Subaru kits continue to benefit from the included pin removal tool for reverse cable work.
GFB 4003 Short Shifter Upgrade Kit - makes 4003 into 4002
