Pivot Ignition Volt Stabilizer Raizin Spark TypeV VS-V (Yellow Type) for Subaru Impreza WRX / STi $80 - for MY03-07 cockeye and hawkeye WRX / STi - Stablize voltage and ignition. - Improve throttle response, fuel consumption and audio quality. - rare item, Pivot stop already production for this item - http://pivotjp.com/product/raizin/raizin-s-e.html - Quote from Pivot "To bring about the best results in voltage stabilization, we added stabilizing circuitry and dual relays and thick cables to connect the ignition coil to the battery at the shortest distance. This combined with the taking of earth directly from the battery has resulted clear improvements in performance, including almost no loss of voltage, a reduction in pulse noise, and a rise in voltage." Self collect at Sengkang Compassvale Crescent only.