Manley Extreme Duty exhaust valves are available in different sizes and listed by head diameter. Exhaust 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 Extreme Duty Valves:
Made from a XH-432 Xtreme alloy, Manley Extreme Duty series performance steel valves are a great choice for supercharged, alcohol-burning, or high-revving engines. These engines generate a lot of heat and require special valves that can handle that kind of punishment. All valves are made from the best stainless steel available, with chrome stems and hardened valve tips. Extreme Duty series valves are swirl-polished and fully machined and available with either undercut heads or straight stems.
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.
| Exhaust Valve Specs: | ||||||||
| Stem Diameter | Installed Height | O/A Length | Tip Length | Underhead Angle Radius | Margin | Seat Width | Top of Head | |
| 5.96mm/.2345″ | Stock | 104.75mm | 3.5mm | 25° x 11/32″ | .060″ | .100″ | 20° Dish | |
| Select Valves: | (11137-8) 32mm/Standard, (11139-8) 33mm/+1mm |
|---|
Fast Shipping with Professional Packaging
We provide a variety of shipping options thanks to our long-standing relationships with UPS, FedEx and DHL. Our warehouse personnel are well trained and will be able to pack your goods in accordance with the exact and precise specifications. Before shipping, all goods are carefully examined and secured. We deliver to thousands of clients each day across multiple countries. The fact that we're dedicated to becoming the largest online retailer in the world is obvious. Warehouses and distribution centers can be found in Europe as well as the USA.
Orders that contain more than one item are assigned processing times according to each item.
We will inspect each and every one of the items ordered before shipping. The majority of orders are shipped within 48-hours. Delivery is expected to take between 3 and seven days.
Returns
We do not manage the stock in our warehouse or factory. The levels of stock can change at any time. Please be aware that it's possible for your order to be out of stock after you have placed the order.
The policy is 30 days. If it's been longer than 30 days since you bought the item We're sorry to say that we can't offer you a full refund or exchange.
The item cannot be used, and it must be in its original condition. It must also still be in the original package.
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