Do you sell CP3 Conversion Kits? Replace failed CP3 Controllers? Our Fish Tuning Advanced CP3 Controllers will work with other kits (e.g. from ATS, PPE or anyone else). Please specify either Duramax (LB7/LLY, LML/LBZ/LMM), Cummins or BMW. Please note: it does NOT matter what kind of pump you have, the one you need is defined by your ECM. 

And yes, it really is as small as it looks, it's only 1" X 1" X 1/2" and easy to hide almost anywhere. Our triple CP3 Controller is hardly bigger - 1 3/4" X 1" X 1/2"

This is a Duramax version. The quarter is there for a size comparison. LLY/LB7 are gray/black and LML/LBZ/LMM are red/blue.