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Manley 11171-8 - Race Master Exhaust Valves Subaru EJ20 / EJ25 - 33mm
* Whole number only
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Manufacturer: Manley
Part No.: 11171-8
Manley's Race Master Stainless Exhaust Valves for the Subaru EJ20 / EJ25 feature Chrome Stems, Hardened Tips, Fully Machined Surfaces and Swirl Polished Radii. These Valves are made from XH-426 Stainless Exhaust Material and are designed to handle additional heat from High Performance Street applications.
Part Number
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11171-8
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Type
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Exhaust
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Head Diameter
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33mm / +1mm
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Stem Diameter
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5.96mm / .2345"
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Installed Height
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Stock
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Overall Length
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104.75mm
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Tip Length
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3.5mm
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Underhead Angle / Radius
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25° x 11/32"
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Margin
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.060"
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Seat Width
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.080"
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Top of Head
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20° Dish
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