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Manley Race Series 36mm Stainless Intake Valves - Race Flo for 2002-2012 Subaru Impreza WRX/STI & Saab 9-2X

$211.14 $263.93
-20%
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Manley Race Series 36mm Stainless Intake Valves - Race Flo for 2002-2012 Subaru Impreza WRX/STI & Saab 9-2X
$211.14 $263.93
$211.14 $263.93

Fits select 2002-2012 Subaru Impreza WRX and WRX STI, and 2005-2006 Saab 9-2X Aero.

Manley Race Series intake valves are meticulously engineered to handle the thermal and mechanical stresses of bracket, drag, and oval track racing. Designed for engines operating at speeds up to 8,000 RPM, these valves are an essential upgrade for high-performance EJ-series builds. These valves feature the Race Flo shape, utilizing a specialized profile to optimize flow across the seat and into the combustion chamber.

Constructed from high-grade NK-842 stainless steel, Manley part number 11138-8 features swirl-polished under-head areas and fully machined combustion faces to maximize airflow efficiency. To ensure long-term durability and resistance to wear, these valves are finished with chrome stems and hard tips for superior compatibility with high-lift camshafts and heavy-duty valvetrain components.

  • Head Diameter: 36mm
  • Material: NK-842 Stainless Steel
  • Stem Construction: Chrome-plated stems with hardened tips
  • Face Design: Fully machined combustion face
  • Profile: Race Flo for enhanced intake flow
  • Manufacturer Part Number: 11138-8
🔧 Fitment & Compatibility
Year Make Model Submodel
2005-2006 Saab 9-2X Aero
2002-2012 Subaru Impreza WRX
2006-2007,2010-2012 Subaru Impreza WRX Limited
2009-2012 Subaru Impreza WRX Premium
2004-2012 Subaru Impreza WRX STI
2007,2011-2012 Subaru Impreza WRX STI Limited
2010 Subaru Impreza WRX STI Special Edition
2006-2007 Subaru Impreza WRX TR

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