Looking for a bit more punch over the Stage 1? The 50.3mm compressor wheel upgrade in our Stage 1.5 will give you more upper rpm without the need for an upgraded torque converter. Boost response is crisp, and this turbocharger will deliver enough airflow to support an additional 50 HP over the stock 17C compressor wheel while retaining great street manners. The Stage 1.5 features our proven 9 bladed 55mm exducer turbine wheel for reduced drive pressure (backpressure), new bearing housing, USA made Severe Duty Thrust and Genuine MHI Japan Bearings and Seals.
