Cobb Tuning Subaru/Mitsubishi LF Bypass Valve
The Cobb Tuning LF Bypass Valve is a compact and lightweight bypass valve capable of holding extremely high boost pressures without leaking. The updated design reduces control volume by 30%, allowing boost to be vented very quickly upon actuation. Innovative engineering and precision manufacturing result in a compact package that fits within the confines of tight engine bays.
Due to the light weight of the components, the moving parts of the LF Bypass Valve have low inertia and can respond faster than the heavier components of other bypass valves. This updated design uses a banjo-fitting vacuum port that allows for 360-degree adjustment of hose routing. This makes installation easier than NPT ports and reduces potential leak points.
This new design also includes a piston O-ring seal that is twice the diameter of the older design, providing enhanced seal compression and reduced wear. The updated spring and seal design eliminates the need for spring seat adjustment, while increasing clamping force at peak boost by 60% and maintaining similar operation during idle and transient load.
Features
- Capable of holding extremely high boost pressures without leaking
- Reduces control volume by 30%, allowing for very rapid venting
- Compact package that fits within the confines of tight engine bays
- Moving parts of the LF Bypass Valve have low inertia and can respond faster than the heavier components of other bypass valves
- Uses a banjo-fitting vacuum port that allows for 360-degree adjustment of hose routing
- Includes a piston O-ring seal twice the diameter of the older design for enhanced seal compression and reduced wear
- Updated spring and seal design increases clamping force at peak boost by 60% while maintaining similar operation during idle and transient load
Applications
- 2008-2014 Subaru Impreza WRX
- 2009-2013 Subaru Forester XT
- 2005-2009 Subaru Legacy GT
- 2005-2009 Subaru Outback XT
- 2007-2013 Mazda Mazdaspeed 3
- 2006-2007 Mazda Mazdaspeed 6
What's in the box?
- 1 - COBB LF Bypass Valve
- 1 - Hose
- 1 - Gasket
References
Warranty
- Cobb Tuning Products, LLC warrants to the original retail purchaser that all components manufactured by Cobb Tuning, or sold under the Cobb Tuning brand by an authorized Cobb Tuning dealer, shall be free from defects in material and workmanship for a limited warranty period of 12 months from the date of purchase.
Before Ordering
〇 Regarding Import Consumption Tax
At the Shaftoya shopping site, we pay the import consumption tax incurred at the time of import on your behalf, so there will be no additional charges beyond the total amount paid at checkout.
〇 Checking Compatibility
Our entire product database is based on North American vehicles (USDM). Please confirm whether the product can be installed on a Japanese vehicle (JDM) before ordering. (If you are unsure if a listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to look into it for you.)
If you place an order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are filtered by selecting the year, manufacturer, and vehicle model using the tabs on our homepage, this does not necessarily mean they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping costs are paid at the time of payment. Shipping estimates are calculated automatically once you enter your shipping address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping cost and the actual shipping cost. In such cases, we will contact you individually via email.
All products are generally shipped internationally from our US warehouse. Unlike domestic Japanese shipping, international shipping takes approximately 7 to 14 days, so please order with time to spare. If you are in a hurry, please contact us to confirm delivery times in advance. Please note that all products are transported by air; they are not shipped by sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
The products we handle are generally designed and manufactured outside of Japan. Please note that they are not compliant with "Japanese Vehicle Inspection (Shaken) standards," and we cannot provide strength calculation documents or similar paperwork for these standards. 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, packaging boxes and products may sustain shipping damage. We will only provide returns, refunds, or replacements for products with shipping damage, defective products, or items different from what was ordered if we are notified within 7 days of receipt. Please understand that for products sold through us, warranty support will be provided "only through us." Please note that we do not provide support through other companies or distributors located in Japan.