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Since 2004, GSP has been a trailblazer in the North American axle industry. With an extensive range of applications, a wide SKU count, and a track record of introducing the latest applications ahead of the competition, GSP is the go-to choice. In 2010, GSP expanded into hub assemblies and swiftly earned the trust of the industry, becoming the most reliable brand.
When it comes to your hub assembly, axle shaft, and loaded strut needs, you can have full confidence in GSP's expertise.
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
Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.
This item fits the following BMWs:
E82/88 BMW 128i
E46 BMW 323i 325Ci 325i 325xi 328Ci 328i
E90/92 BMW 328i 328i xDrive
E85 BMW Z4
Because of where the stock boost hose is located - often leaks go unnoticed. Replace your stock hose that is prone to failure with this 4ply Fluorosilicone hose that is better suited to handle the pressures, temperatures, and withstand total failure caused by oil. Couplers are CNC machined. Following instructions is necessary - if installed incorrectly, the hose will seem too short for its application.
This product fits the following BMWs:
2006-2012 E90 335d
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.
This item fits the following BMWs:
E90 BMW 325xi 330i 330xi
Upgrade your car's vacuum system with the Silicone Vacuum Line, a vital component that significantly impacts engine performance. Engineered to resist heat and contaminants, this silicone hose promises exceptional durability, ensuring prolonged and reliable operation.
Featuring an inner diameter of 4mm and a vibrant red color, this silicone hose arrives in a 9-foot section, offering the flexibility to customize lengths as needed. Damaged vacuum hoses can lead to various performance issues, from rough idling to engine starting problems. Promptly replace worn-out hoses to optimize your vehicle's overall performance.
Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.
This item fits the following BMWs:
E82/88 BMW 128i 135i
E90/92 BMW 325i 328i 328i xDrive 330i 335i
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
Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.
This item fits the following BMWs:
E82/88 BMW 128i 135i
E90/92 BMW 325i 328i 328i xDrive 330i 335i
Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.
This item fits the following BMWs:
2008+ E82 BMW 128i 135i 135is
2006-2011 E90 BMW 325i 328i 330i 335d 335i - Sedan
2006-2012 E91 BMW 328i - Wagon
2007-2013 E92 BMW 328i 335i 335is - Coupe
2007-2013 E93 BMW 328i 335i M3 - Convertible
2013+ E84 BMW X1 sDrive28i
2009+ Z4 BMW Z4 sDrive28i Z4 sDrive30i Z4 sDrive35i Z4 sDrive35is
Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.
This item fits the following BMWs:
E60 BMW 525i 525xi 530i 530xi
E90 BMW 325xi 330i 330xi
This product was last offered at the strikethrough price on
05-08-2026
This product was last offered at the strikethrough price on
05-08-2026
Upgrade your BMW's vacuum system with the Forge 3MM Silicone Vacuum Hose in Red, a high-quality solution designed for optimal performance and durability. This 9-foot silicone vacuum hose provides superior flexibility and resistance to extreme temperatures, making it ideal for various automotive applications. Engineered with precision, it ensures reliable vacuum pressure for efficient engine operation and component functionality. Whether you're replacing worn-out hoses or customizing your BMW's vacuum setup, the Forge Silicone Vacuum Hose offers reliability and performance you can trust.
Car suffering from vacuum leaks? This vacuum hose has a 3mm inner diameter.