Performance - VOLVO S40 MK2 (2004-2012)

Now you can fine tune your Blow Off/Diverter Valve to the exact needs of your engine with this complete tuning kit. If you are finding that the valve is dumping more than required, or if you are losing boost pressure it is normally an indication that a stronger spring is required. Alternatively, if the valve is failing to dump it may be necessary to install a weaker spring. Please note that fitting a stronger spring into a valve will not increase boost pressure, unless existing pressure is being lost. Failure to allow the valve to operate by installing a spring which is too strong, may cause damage to the turbocharger. Please also note that the red coded springs should not be installed in the DVR or DV007 diaphragm valves.  Valve Spring color coding: Green - 5-15 PSI, Yellow - 15-23 PSI, Blue - 23-30 PSI, Red - 30 + PSI.*The above figures are estimates only and should only be considered as a guideline* Note: Serious or fatal damage may occur to the engine and associated components if this product is incorrectly matched to the individual engine requirements. Forge Motorsport nor any of it’s authorised distributors can assume any responsibility for any adverse effects resulting from the installation of this product.  Please contact us if you are uncertain whether this kit is suitable for your valve. *Please Note - The colours of the springs illustrated may differ to what you receive. All spring kits are brand new but are not sprayed. Colour is used as an identifier*   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.   FOR MULTIPLE VEHICLES 

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This has been designed by Forge Motorsport as a direct replacement for the compressor bypass valve (CBV) that bolts directly to the turbo . It replaces the OEM diaphragm type valve with a piston design that allows for tuning with interchangable springs. For those running higher boost pressures after software tuning this really is a must to ensure that you do not lose boost through the valve.    In The Box:1 x FMDVRMR Valve1 x Uprated Yellow Spring1 x Uprated Blue Spring3 x M6 x 16 Socket Cap Bolts1 x Forge Sticker This product comes assembled with a green spring but is supplied with an additional uprated yellow spring. If your car is a Renault Megane RS250, 265, or 275, then this spring should be fitted instead of the stock green spring. If you wish to further tune this product to fit the needs of your engine, please see the spring tuning kit below.  Replaces OEM Part No. 55558627 (Saab) 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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