PRECISION FIT FOR 6.7L CUMMINS: TEMBOR intake manifold is precision-engineered to fit 2013-2018 Dodge Ram 6.7L Cummins (Chassis-Cab) models perfectly, ensuring optimal performance. Note: Not compatible with chassis cab versions. HORSEPOWER & PERFORMANCE BOOST: Upgrading intake manifold/Horn does more than replace a part — it unlocks your truck’s full potential. You‘ll enjoy greater airflow, quicker throttle response, and improved fuel efficiency for a noticeably enhanced driving experience. 2X OEM DIAMETER, +88% AIR INTAKE: TEMBOR’s intake manifold features a 2× larger intake port than OEM, increasing airflow into the engine cylinders by 88%. This boost enhances combustion efficiency and overall engine performance.