Dorch Engineering BMW Intake Manifold Components (DISA, Vacuum, CCV, Etc)
The intake manifold takes incoming air from the intake and distributes it to each cylinder. Over the years the manifolds have gotten more sophisticated and complex. Most of the additional work that it does is emissions-related - recirculating vapors back into the engine to be re-used. But there are also performance innovations such as BMW's DISA variable intake runners. All of the modern innovations have a part behind it and here you will find replacement components.
In some BMW models there are performance improvements with intake manifolds. These intake manifold upgrades use mostly BMW parts and are a direct replacement for your stock manifold. We offer manifolds and kits to make the conversion work easier.
Dorch Engineering offers an upgraded vacuum pump, featuring their own upgraded cam within the pump assembly. This upgraded cam allows for a 38% increase in fuel flow out of the factory High Pressure Fuel Pump (HPFP).
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