Manley Intake Valves for 02-05 WRX / 04+ STi (Set of 8)
Manley Race Flo intake valves are available in different sizes and listed by head diameter. Intake valves are sold as a set of 8. Fits 2002-2005 EJ205 Subaru WRX and 2004-2021 EJ257 Subaru STi. These valves are not compatible with the 2006+ WRX.
Vehicle Fitment:
EJ205 / EJ257
• 2002-2005 Subaru WRX
• 2004-2021 Subaru STi
(* Not for 2006+ WRX models *)
Purchase Includes:
• Set of 8 Valves
• Select Head Diameter Valve Size
Manley Race Flo Valves:
Manley Race series performance valves are a great choice for your bracket, oval track, or high performance street engine. All valves are made from stainless steel (intakes are NK-842; exhausts are XH-426) with chrome stems and hardened valve tips. In addition to being made from high-quality materials, Race series valves are swirl polished and fully machined.
Install Note:
Manley strongly recommends that customers check their valve guide size in order to achieve the proper valve stem to guide clearance. Guides may need to be honed when replacing stock factory valves.
Vehicle Fitment:
EJ205 / EJ257
• 2002-2005 Subaru WRX
• 2004-2021 Subaru STi
(* Not for 2006+ WRX models *)
Purchase Includes:
• Set of 8 Valves
• Select Head Diameter Valve Size
Manley Race Flo Valves:
Manley Race series performance valves are a great choice for your bracket, oval track, or high performance street engine. All valves are made from stainless steel (intakes are NK-842; exhausts are XH-426) with chrome stems and hardened valve tips. In addition to being made from high-quality materials, Race series valves are swirl polished and fully machined.
Install Note:
Manley strongly recommends that customers check their valve guide size in order to achieve the proper valve stem to guide clearance. Guides may need to be honed when replacing stock factory valves.
| Intake Valve Specs: | ||||||||
| Stem Diameter | Installed Height | O/A Length | Tip Length | Underhead Angle Radius | Margin | Seat Width | Top of Head | |
| 5.97mm / .2350" | Stock | 104.6mm | 3.55mm | Pro Flo: 19° x 5/16" | .050" | .080" | 14° Dish | |
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