SPEED OF AIR PISTON & RING SET (GAPLESS) – 2007.5-2018 CUMMINS 6.7L

This piston and ring set improves combustion efficiency, reducing emissions and fuel consumption while increasing horsepower and extending oil change intervals for Cummins 6.7L engines.

• The description claims the technology reduces NOx, CO, and HC emissions.
• The description claims increased horsepower and torque per specific fuel consumption.
• The description claims extended oil change service intervals and prolonged lubricated bearing life.
• The description claims the pistons are custom made under strict quality control.