2002-2011 Subaru WRX / STi Race Master Exhaust Valve - Single by Manley Performance
The Race Master, and Pro Flo versions identified as Race Flo valves, are manufactured from XH-426 material for exhaust and NK-842 material for intake. This valve series is intended for bracket, drag, and oval track racers operating at or below 8000 rpm. Generally, engine speeds above 8000 rpm require titanium valves.
Engine builders who successfully use EV-8 alloy (21-4N) valves will find that this series of Manley valves is an excellent product at a most attractive price. The ultimate tensile strength tables on this and the next page demonstrate that the Manley Race series is equal to the best offered by competitors.
Features
- Head Diameter: 33mm
- Stem Diameter: 5.96mm/.2345"
- Installed Height: Stock
- O/A Length: 104.75mm
- Tip Length: 3.5mm
- Under-head Angle/Radius: 25° x 11/32°
- Margin: 0.060"
- Seat Width: 0.080"
- Head Top: 20° Dish
- Swirl polished and fully machined
- XH-426 stainless exhaust material
- Chrome stems and hard tips
Benefits
- Recommended exhaust valve for alcohol engines
- Suitable for drag track and oval track racers operating under 8,000 rpm
Please note: The image provided is generic and may not be an exact representation of the product you will receive.
Applications
- 2002-2005 Subaru Impreza WRX
- 2004-2011 Subaru Impreza WRX STI
- 2007, 2011 Subaru Impreza WRX STI Limited
- 2010 Subaru Impreza WRX STI Special Edition
What's in the box?
- 1 - Valve
Warranty
- Manley products are sold without warranty due to their intended use.
Before placing an order
〇 Regarding import consumption tax
At Shaftoya Shopping Site, we cover the import consumption tax incurred at the time of import, so there will be no additional charges other than the total amount paid at checkout.
〇Confirmation of compatibility
Our entire product database is based on North American vehicles (USDM), so please verify compatibility with Japanese vehicles (JDM) before ordering. (If you are unsure if the listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to look it up for you.)
If you order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by selecting the year, manufacturer, and vehicle model using the tabs on our top page, it does not necessarily mean they will fit Japanese models without modification.
All products have been translated into Japanese using translation software. There may be confusing expressions, so please contact us before ordering if you have any questions.
○ Regarding delivery
Shipping costs are paid at the time of payment. Shipping estimates are automatically calculated when you enter your shipping address on the checkout page. For large items such as body parts, the automatically calculated shipping cost may occasionally differ significantly from the actual cost. In such cases, we will contact you individually via email.
In principle, all products are shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please allow plenty of time for your order. If you are in a hurry, please contact us to confirm delivery times in advance. Note that all products are transported by air; they are not shipped by sea.
○ Regarding Japanese vehicle inspection (Shaken) compliance
The products we handle are designed and manufactured outside of Japan. Please note that they are not compliant with the "Japanese vehicle inspection system," and we cannot provide strength calculation documents for that purpose. Therefore, all parts are sold for the purpose of "use on circuits, private property, or off-road," and installation and use are at your own risk.
○ Regarding warranty
Please check the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packaging or the product. Please understand that we will only provide returns, refunds, or replacements for damaged, defective, or incorrect items if notified within 7 days of receipt. Furthermore, for products sold through us, all warranty-related support will be handled "exclusively through us." We do not provide support through other companies or agencies located in Japan.