These are the same injectors demanded by many of the most discriminating Subaru tuners including Cobb.

Prices are for a flow balanced set of 4 injectors

Each set is individually tested and flow balanced in-house to within a 1-2% variance. The results are included in your custom flow report that accompanies every set of DW injectors. Our flow report also includes additional set-specific data useful for tuning. DW STi injectors also feature...
100% drop-in fitment
OEM 12-orifice atomization plate (4-hole for 550's and 650's) upper and lower o-rings
High Impedance coils to match OEM ECU
Excellent spray pattern and atomization for excellent idle and tuning
Technical assistance and tuning data available via phone or email
12-month comprehensive warranty

PLUS you will receive a $160 rebate if you send us your OEM injectors. A rebate form is included with order. There is no core charge