Awful customer service Awful customer service. I bought a part from them and it broke. They will not warrenty it and told me tough luck.

The products are very well made and fit… The products are very well made and fit perfectly. Good customer service as well. My 1998 E350 runs much quieter with wide open throttle now.

Great product Great product. BUT, I wish I knew that the driver side line is not compatiable with aftermarket intake plenums such as RiffRaff. They are too thick and you can not screw the 90* fitting on. I now have an extra line I cannot use and must purchase another passenger side line.

Recieved programs for my Hydra from CNC… I recieved programs for my Hydra from CNC Fab. What a difference it made in power. I tried PHP and Gearhead programs, but CNC had the best seat of the pants power increase of all three companies. The CUMMINS KILLER program is AWSOME!!!

Corey offered great customer support… Corey offered great customer support and service when dealing with my order. I didn’t know exactly what I needed and he made sure I understood what the difference in parts were. He was very helpful in all aspects. Great customer service.