Fish Tuning Advanced CP3 Controllers

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) or Cummins.

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

We can also make triples, quads and more by special request.

Please contact us directly at or (310) 499-0989 for international shipping, more information or large quantity orders.

Installation instructions located here.

CP3 Controller Picture

Need to order one for your truck?

If you have a LBZ, LMM or LML Duramax make sure to tell us which one so you get the proper controller.

If you don't say, you will get one for an LB7 or LLY. Please contact us for international shipping prices. Sorry, the website only quotes prices in the US. If you order outside the US, we will contact you for more money for shipping.

CP3 Options