Supply & Demand.
Our Top feed fuel rail conversion kits are designed for 2002 – 2007 JDM cars with the single piece Inlet manifold
When tuning your Subaru to obtain increased BHP, factory injectors are limited as to the volume of fuel they can supply to support the increased power. Switching to a high flow injector offers more options where injector sizes and manufacturers are concerned, therefore enabling greater fuelling options.