Hi everyone. I just installed a Pureflow FRRP-100 on my 01 Dodge 2500. It works great so far. My question is my kit didn't come with a relay for the pump. The instructions say to plug it into the factory harness. I would like your opinion, should I install a relay or will it be ok?

Originally, they did come with a relay harness. It along with quality went away. I would suggest installing one, as the ECM directly runs the lift pump. The FRRRP draws quite a bit more amperage.

Ed