Originally Posted by jensenrcng
I just had my ad2 installed and I was under the impression from reading the brochure, that it was supposed to be quiet. I can here the whine in the cab. Does anyone else hear their pump?
I have a 165. I did not use the supplied plates that sandwich the frame rail. I used a 10'' piece of 2x3 tubing, drilled and threaded to fit pump bracket, closed the open ends of the tubing and welded it to the frame rail, then bolted the pump bracket to it. It is at about the back of the passenger door. I can hear it clearly without the engine running but with the truck idling in the cab it is barely audible. I can hear it but you wouldn't if you weren't listening for it. The 5'' MBRP turbo back exhaust may help too. I am happy with this setup so far with performance and noise. You could soundproof the floor over it with Dynamat or something if it is too annoying to you possibly.