Is the 4 inch MBRP exhaust with no cat a nice system? I don't want anything very loud, just something that has a nice rumble/sound to it. Would that be this exhaust? Thanks

It is pretty mellow. I had my stock system straight piped and it is definately quieter/mellower and my friends say you can hear the turbo spooling up better....probably since there is a muffler on the system now.

Its a nice sound. Not to loud at idle but gets louder when on it. If you want to hear turbo whistle get Stage 2 AFE.

Yes, you will like the MBRP kit. Its got a deep growl at idle and comes alive when you stomp on it. Im not sure what you consider loud, but this system is pretty aggressive.

I really like my MBRP system. It sounds great when I want it to, but is not so loud as to be annoying on long drives.

If I order an exhaust for my truck, will I have to get the cat delete pipe since there was no cat from the factory? What about the 4 bolt flange back kit DPPI sells? Is that good too?