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This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
10-26-2026
This product was last offered at the strikethrough price on
10-26-2026
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
The diverter valve is responsible for redirecting boost away from the intake when it's not needed. Other cars use a blow-off valve to vent the pressurized air into the atmosphere (the whoosh sound commonly heard on turbo engines) but BMW and other makers use a diverter valve to keep the air circulating through the intake for emissions purposes. A failing diverter valve will lead to a boost leak as turbocharged air leaks past the seals instead of going into the engine when you want it. This is a minor issue on stock engines but a bigger issue on tuned or heavily modded engines (those will use an aluminum diverter valve instead of the stock plastic). The factory diverter valve is plastic which is prone to cracking and electric which will fail without warning. This is a direct replacement diverter valve for cars with the N55 and S63 (X5M/X6M) engines.
N55 takes 1 diverter valve.
S63 takes 2 diverter valves (1 per turbo).
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5 X5,E71 X6,E82,E90,E92,E93,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4 X4,F30,F32,F33,F34,F36
S63 engine applies to X5M/X6M only. Fxx M5/M6 uses S63TU engine and does not use a diverter valve at all.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
10-26-2026
This product was last offered at the strikethrough price on
10-26-2026
This alloy hard pipe fits to the throttle body and incorporates our high flow Blow off valve. This new valve fresh from our R&D department is the largest displacement valve that Forge have ever made ! Featuring a 50mm (2”) aluminium piston so that there are no issues with split diaphragms, we have not found the power handling limits of this valve yet ! The piston uses heat stabilised viton o-rings and high temperature Mobil 1 grease to ensure a long life with minimal wear and very long service intervals.
All parts are included in the kit, for your installation, along with comprehensive instructions.
This product fits the following BMWs:
2008 - 2013 E82 135i
2007 - 2013 E9x 335i
This product was last offered at the strikethrough price on
10-26-2026
This product was last offered at the strikethrough price on
10-26-2026
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
05-02-2026
This product was last offered at the strikethrough price on
10-26-2026
This product was last offered at the strikethrough price on
10-26-2026
This product was last offered at the strikethrough price on
10-26-2026
This product was last offered at the strikethrough price on
10-26-2026
This alloy hard pipe fits to the throttle body and incorporates dual high flow Blow off valves. These new valves, fresh from our R&D department are the largest displacement valves that Forge have ever made ! Featuring a 50mm (2”) aluminium pistons so that there are no issues with split diaphragms, we have not found the power handling limits of these valves yet ! The pistons uses heat stabilised viton o-rings and high temperature Mobil 1 grease to ensure a long life with minimal wear and very long service intervals.
All parts are included in the kit, for your installation, along with comprehensive instructions.
This product fits the following BMWs:
2008 - 2013 E82 135i
2007 - 2013 E9x 335i
