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The Underdrive Pulley Kit promotes faster engine revs and more performance in the Subaru STI
NOTE: Rear pads only
and high capacity integrated heat sinks
Upgrade Your Interior
Cooler air intake temperatures mean more horsepower
DeatschWerks Fuel Injectors Top Feed 650cc - 2002-2014 Subaru WRX / 2007-2021 STI pdm_transmission-and-differential-bushings The Underdrive Pulley Kit promotesHIGHLIGHTS: 650cc injector size Top feed type Includes new pigtails Perfect for mild to slightly moderate bolt ons DeatschWerks Fuel Injectors Top Feed 650cc SPECS: Top feed type High impedance coils for compatibility with the OEM injector driver Ethanol and methanol compatible Each set is flow matched to within 1 2% DeatschWerks includes a flow report Built using OEM cores, or are brand new units that are a result of a 40 point data inspection before