Supertech Valve Guides for Subaru EJ WRX/STi Select::Exhaust 11.08mm (1 Single) (GDE-SUEJ6-E-1) this causes spark voltage to

this causes spark voltage to increase

(1) STM Aluminum Tie Down

• Raised belt guides

(3) M6x25 Stainless Socket Cap Bolts

Intake is not included

Supertech Valve Guides for Subaru EJ WRX/STi Select::Exhaust 11.08mm (1 Single) (GDE-SUEJ6-E-1) this causes spark voltage toSupertech maganese bronze valve guides for EJ20 EJ25 Subaru WRX and STi. These guides are available for intake and exhaust valves. Sold as a set of 8 guides or individually as needed. You'll need 16 guides for a whole set. Please do all your research and consult your engine builder if necessary! Vehicle Fitment: 2002 2014 Subaru WRX 2004 2021 Subaru STi EJ20 EJ25 Guide: Diameter: Includes: Part Number: Exhaust OD 11. 08mm(Standard) 47. 50mm Length 6mm