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Its larger internal diameter increases airflow compared to the stock hose
the gauge maintains a compact 52mm (2-1/16”) housing and an ultra-slim depth of under 0
low-profile style
requiring only minutes
Perrin Crank Pulley Black 2019-2021 WRX / 2015-2016 Impreza / 2015-2019 Legacy / 2016-2018 Forester linkupdate Its larger internal diameter increasesPerrin Crank Pulley Black 2019 2021 WRX 2015 2016 Impreza 2015 2019 Legacy 2016 2018 Forester Lightweight 6061T6 Aluminum Performance Crank Pulley Overview The Perrin Crank Pulley is a precision engineered performance upgrade designed for select Subaru models equipped with FA and FB series engines, including the 2019 2021 WRX, 2015 2016 Impreza, 2015 2019 Legacy, and 2016 2018 Forester. This crank pulley reduces rotational mass by approximately 1
