Bmw 335i Twin Turbo Forge Motorsport Single Blow Off Dump Valve And Hardpipe Kit 1 x FMBM335DV1 Blow Off Dump Valve And Hardpipe Kit – Atmospheric Blow-Off Sound (Quite) – Fully OEM ECU Compatible – Direct Bolt On PLEASE NOTE – This product is not suitable for the 335i models with N55 Engine code. Product Description Suitable for the BMW 335 fitted with the N54 Twin Turbo engine. This alloy hard pipe fits to the throttle body and incorporates our high flow Blow off valve. This new valve fresh from our RD department is the largest displacement valve that Forge have ever made! The piston uses heat.. Bmw 335i Twin Turbo Forge Motorsport Single Blow Off Dump Valve And Hardpipe Kit 1 x FMBM335DV1 Blow Off Dump Valve And Hardpipe Kit. Atmospheric Blow-Off Sound (Quite). Fully OEM ECU Compatible. PLEASE NOTE – This product is not suitable for the 335i models with N55 Engine code. This new valve fresh from our R&D department is the largest displacement valve that Forge have ever made! The piston uses heat stabilised viton o-rings and high temperature grease to ensure a long life with minimal wear and very long service intervals. Note: that due to the high flow (and low restriction) offered by the 50mm valve, they are very quiet in operation. 1 x FMBM335DV1 Valve. 1 x Alloy Throttle Body Hard Pipe. 1 x Silicone Reducer. 2 x Silicone Straight Blanks (25mm). 2 x 30mm Hose Clamps. 1 x 80mm Hose Clamp. 1 x 90mm Hose Clamp. 2 x M6 x 12 Socket Cap Bolts. 1 x M6 x 16 Socket Cap Bolts. 1 x M6 Penny Washer. 2 x M6 Plain Washer. 1 x USB Instructions. 1 x Forge Keyring, Bottle Opener and Sticker. BMW 335i Twin Turbo N54 Engine Code Only E90 E91 E92 E93. Please Note: This part does not fit the N55 Engine Code.