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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
500°F continuous Pyrojacket protection
Construction: Precision CNC-machined backing plates
Whether you're daily driving or pushing your Subaru on the track
the Perrin Crank Pulley is a practical and effective enhancement
guaranteeing a perfect fit and enhanced vehicle dynamics
GrimmSpeed Lightweight Crank Pulley Red 15-21 WRX / 13-21 BRZ / FRS / GT86 / 14-18 Forester YR_2001 500°F continuous Pyrojacket protectionYour factory crank pulleys job is straightforward: it transfers rotational energy from the crankshaft to the water pump, A C compressor, and alternator via the accessory belt. While it performs reliably, the OEM pulley is unnecessarily heavy. This extra mass is largely the result of inexpensive manufacturing methods and the need to dampen minor accessory drive noisenot because it functions as a harmonic damper (it does not). The GrimmSpeed Lightweight
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