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Manley Performance MAN Extreme Duty Valves - Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 32mm Stainless
Part #: 11137-1
$68.54 For each
Fits On:
2005 Saab 9-2X
Description:
Manley Performance's Extreme Duty exhaust valves are 32mm stainless units designed for high-stress applications in the EJ20 engine found in the 2000-2003 Subaru WRX and 2004 STi.
Manley Performance's Extreme Duty exhaust valves are 32mm stainless units designed for high-stress applications in the EJ20 engine found in the 2000-2003 Subaru WRX and 2004 STi.
Q: What are valves? Why buy valves?
A: Valves are used to let a mixture of air and fuel into a cylinder and allow exhaust gases to get out. Each cylinder has at least two valves each, multi-valve engines have more, often four per cylinder. Upgraded head valves are able to withstand more heat from nitrous oxide use and turbo/supercharger use, so it's an excellent upgrade for people looking for added compression without sacrificing any reliability.
Q: How do you install valves?
A: Valves require headwork and should be left to the pros. While replacing valves, valve guides, retainers, valve springs and camshafts should all be considered for upgrades at the same time.
A: Valves are used to let a mixture of air and fuel into a cylinder and allow exhaust gases to get out. Each cylinder has at least two valves each, multi-valve engines have more, often four per cylinder. Upgraded head valves are able to withstand more heat from nitrous oxide use and turbo/supercharger use, so it's an excellent upgrade for people looking for added compression without sacrificing any reliability.
Q: How do you install valves?
A: Valves require headwork and should be left to the pros. While replacing valves, valve guides, retainers, valve springs and camshafts should all be considered for upgrades at the same time.
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