Performance Diesel Inc. - Cummins X15 running our BIG BOSS add a turbo kit, exhaust manifold, intake and performance tuner! All of these parts are included in our STAGE 3 Cummins power
2019 Cummins X15 – Naomi's Truck Parts
Cummins expands X15 portfolio
Cummins Introduces New 2020 X15 Series Engines | OEM Off-Highway