Crankshaft Pin Kit 01-16 GM 6.6L Duramax XD331 XDP 6.7 Turbo You will need custom tuning

You will need custom tuning for these to run to their full potential

Meets Or Exceeds OE Specifications

84 A/R Housing will provide a quicker spool and cooler EGT's below 3000 RPMs

The XD515 Kit is built around a set of fuel injectors and a CP4 pump that are both remanufactured to stringent standards that meet or exceed the OE specifications

**We Highly Recommend adding these products for best results:**

Crankshaft Pin Kit 01-16 GM 6.6L Duramax XD331 XDP 6.7 Turbo You will need custom tuningAvoid catastrophic engine failure from a sheared dowel pin in your 2001 2016 GM 6. 6L Duramax with the XDP Duramax Crankshaft Pin Kit XD331. From the factory, your Duramax uses a dowel pin on the crankshaft to hold the balancer in place. In both stock and performance applications, these dowel pins are easily sheared causing the balancer to spin on the snout of the crankshaft. When this balancer spins, it can throw off the balance of the engine and