JCS Diesel Performance

About

We specialize im makimg horsepower, 50/50 cummins 89'+ and duramax 01'+, not only are we obsessed with perfectly building engines, we have obsessively mastered the dodge 46RE 47RH 47RE, and the 48RE, we are known for building some of the baddest high HP, Reliable, Engines and transmissions in southeast Wisconsin. I specifically build these engines and transmissions assumimg they are going to get beat like they owe you money,

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