GSC Power Division Manganese Bronze Intake Valve Guide Set for Subaru EJ Series Engines - 3026-8 2.50" to 2.75" STI 2007-2015 Replaces 21S-01-1000-4 Upgrade

STI 2007-2015 Replaces 21S-01-1000-4 Upgrade your Subaru performance with the DeatschWerks 17U-07-1000-4 Bosch EV14 fuel injectors

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GSC Power Division Manganese Bronze Intake Valve Guide Set for Subaru EJ Series Engines - 3026-8 2.50" to 2.75" STI 2007-2015 Replaces 21S-01-1000-4 UpgradeGSC P D EJ Series EJ205 EJ207 EJ260 Manganese Bronze Intake Valve Guide Stopper Style Set 8 Enhance the durability and performance of your Subaru EJ series engine with the GSC Power Division Manganese Bronze Intake Valve Guide Stopper Style Set. Designed specifically for models such as the 1999 to 2007 Subaru Impreza, this set of eight guides ensures precise valve operation and reduces wear over time. Crafted from high quality manganese bronze, these