With 18 new engine-powered machines being introduced, Case IH touts themselves and its Selective Catalytic Reduction (SCR) technology as the first and only maker to use this patented method to meet strict Tier 4 Final emissions standards. Its SCR-only solution treats the exhaust flow downstream and after the combustion process so the engine generates maximum power without adding any complexity or compromising efficiency. Case IH claims a 95% NOx conversion efficiency, compared to competitive SCR systems that provide 80-85% efficiency and require a diesel particulate filter and/or exhaust gas recirculation.