North Shore Speed Shop Fuel Y-Block for Subaru WRX STI

Tired of a sloppy looking engine bay when routing fuel system hoses with multiple fitting combinations? The stock factory fuel system routes the fuel rails in series causing a dangerous lean condition in cylinder 4 when performance increasing modifications are installed. By routing the fuel supply to the fuel rails in parallel this is eliminated and all cylinders are supplied evenly. Our stylish Y-block mounts to the top of the manifold providing even fuel flow and a clean fuel line routing. The Y block is provided with mounting hardware and a fuel regulator bracket as shown.

Fits – ‘02-’14 WRX, 07-Current STi, ‘05-’12 LGT, ’05-’09 OBXT

The regulator mount bracket only fits on reverse manifold applications. It will not clear the alternator is a standard configuration.