Bull Boost Performance Cylinder 4 Cooling Mod – Subaru EJ20 / EJ25 WRX STI LGT FXT (02–14 WRX / 04–21 STI) DND Performance Interior(R) 03-06 Chevy Silverado 1500 2500

03-06 Chevy Silverado 1500 2500 3500 & HD Models

Compatible with Bull Boost Performance K-Series Billet Electric Water Plate setups

Bulbs not Included

Whether you’re looking to achieve a more aggressive stance or sharper cornering response

while the included heat shield helps isolate the intake from engine bay heat

Bull Boost Performance Cylinder 4 Cooling Mod – Subaru EJ20 / EJ25 WRX STI LGT FXT (02–14 WRX / 04–21 STI) DND Performance Interior(R) 03-06 Chevy Silverado 1500 2500Bull Boost Performance Cylinder 4 Cooling Mod Subaru EJ20 EJ25 WRX STI LGT FXT (0214 WRX 0421 STI) Part Number: 720053572384 Product Description: Improve engine reliability and cooling efficiency with the Bull Boost Performance Cylinder 4 Cooling Mod, engineered specifically for Subaru EJ series engines. This upgrade is designed to increase coolant flow to cylinder #4, the hottest and most failure prone area in EJ platforms. By improving coolant