We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner
An Alloy Atmospheric Dump Valve to fit the Subaru Impreza 2001 onwards models including the 2009 GR STi .
Made from billet aluminium and hand polished in the UK, this atmospheric diverter valve dumps the charge-air to atmosphere creating the "Whoosh" sound most commonly associated with rally cars when the throttle is lifted. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably.
In The Box:
1 x FMDVSUB01 Valve
1 x 34mm Blanking Plug
1 x Forge Sticker
If you wish to tune this product to fit the needs of your engine, please see the spring tuning kit below.
If you are unsure if this product is suitable for your application, please contact us.
Please Note: In line with our policy to constantly review, revise, and improve our product range, the appearance of the product you receive may differ from the one advertised.
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Dump Valve for Subaru Impreza 2001 Onwards, Including the 2009 GR STi
All Forge Motorsport products come with a limited lifetime warranty. All warranty claims must be accompanied by the original proof of purchase to enable us to help you. Failure to supply this proof will result in your claim or enquiry being denied.
For further information, please call our customer service team on +44(0)1452 380999 or email email@example.com.
Do not use aggressive (acidic) car cleaning products, particularly traffic film remover solutions or shampoos to clean your intercooler, radiator or oil cooler. The use of these products can damage Forge Motorsport cooling systems and invalidate your warranty. These are often found at car washes. A light, warm, soapy solution (free of harsh acidic cleaning compounds) should be used to clean you cooler and thoroughly rinsed away. We recommend that you should inspect your product on a regular basis for bent and/or crushed fins. Any bent fins should be carefully straightened to allow ambient air to pass through the core face. At the time of installing your Forge radiator, an approved coolant must be used and added to the coolant system. Be sure you never mix coolant and always use distilled water.
All Deliveries are sent via Fedex. We cannot guarantee delivery timelines as all orders are up to shipper schedules and routes. Delivery fee is a Flat Rate of $20 fo all orders over $20. Orders below that value are costed out based on weight. Signature required may be added to your package. Orders can not be re-directed, held, or re-scheduled.
Shipping outside of the Lower 48- Duty Charge Information
All Forge products are sold with a Delivery Duty Unpaid (DDU) status and an import tariff may apply to your order. Customers will be contacted by the Customs and Excise authority in the destination country regarding payment prior to delivery, and it is important that correct contact telephone number and email information be submitted with the order to facilitate this part of the delivery process.
Our shipping methods ensure safe and timely delivery of your new Forge products. For further information on cost and delivery times, please contact Forge using the firstname.lastname@example.org email address if you require any more information. We reserve the right to change the delivery service and company at any time.
***Once a product has left our warehouse and is in the possession of the shipping company, any claims must be made directly with that shipper however we can assist with most cases.
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