Hallman ES Boost Controller Volkswagen SPEC Stage 2+ for the

SPEC Stage 2+ for the Subaru STI: SPEC's Stage 2+ features a multi-friction disc in a full faced configuration with carbon semi-metallic on one side and Kevlar on the other

making the Perrin manifold an excellent choice for big turbo Subarus

but an easy install as well

Two user selectable units

Extremely High Friction Output

Hallman ES Boost Controller Volkswagen SPEC Stage 2+ for thehe Hallman ES boost controller kit contains a billet aluminum body that is anodized black, vacuum line and general installation instructions. The ES (Essentials) kit was designed for those looking for the best "bang for the buck" in boost control. The Hallman ES boost controller is NOT compatible with Hallman's in car cable kit. INCLUDES: ES unit, about 2 feet of vacuum line, and zip ties.