- CNC bored and modified - Enlarged butterflies - Ported and blended for serious airflow improvements - Dyno tested for 8-12+ WHP gain on normally aspirated cars
- Based on engine configuration these results may be even greater
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Coupon LABOR10 has been activated!Your discount is:All products not in the category "Engine Components/BMW Stroker Kits & Crankshafts" are 10% off.