Smeding Diesel 2007.5-18 6.7L Cummins HighFLow Bundle Apparel~Apparel 6L Duramax LB7 with high-quality

6L Duramax LB7 with high-quality fuel lines

Reinforcement ribs are strategically added to weak points

1989 GMC C2500 Sierra

The Cummins engine is one of the most popular platforms to enhance with performance parts

Field test reports have indicated restored throttle response and horsepower

Smeding Diesel 2007.5-18 6.7L Cummins HighFLow Bundle Apparel~Apparel 6L Duramax LB7 with high-qualitySmeding Diesel 6. 7L Cummins HighFLow Bundle If you're looking for an all in one emissions compliant cure to the restrictive factory 6. 7L Cummins horn and highly dangerous factory grid heater, look no further. This kit will provide you with everything you need to ease you and your trucks mind. doubles the flow of your factory horn increases throttle response includes all hardware and gaskets needed increases boost aluminum casted for superior cooling