Supertech Subaru EJ20/EJ25 Manganese Bronze Exhaust Valve Guide 6mm Stem OD 11.08mm

The Valve Guides are precision-machined from high quality Manganese Bronze material. Supertech Valve Guides are designed to be used in combination with our low friction black nitrided valves to provide the best solution for both performance and durability. For exhaust valve guides designed to be used for high powered engines that need a better thermal transfer coefficient, a copper alloy guide is used. Copper has about a 3 times higher thermal transfer than Manganese Bronze.

Specifications:

• Outer Diameter: 11.08mm
• Length: 47.5mm
• Material: Manganese Bronze
• Position: Exhaust

Fitment:

• Subaru Baja 2004-2006
• Subaru Forester 2004-2013
• Subaru Impreza 2020-2021
• Subaru Legacy 2005-2012
• Subaru Outback 2005-2009
• Subaru STI 2015-2021
• Subaru WRX 2015-2021