Greets,
I have an 07 dodge ram 2500 diesel. I put on the Bully dog PMT and I love it, last week I put on a K&N Cold air intake and I like that. But now it's exhaust time.. I was talked into an MBRP full exhaust but my question is, should I go with a 4 inch or 5 inch? I've had some people say 4 and some say 5. I am most likely going to go with a 5 inch but i'd like to hear other opionions on this..

 

5inch all the way. get that hot air away from the turbo.

 

5in exhaust dude I have its great nice and loud if that's what your going for?

 

On a stock turbo, the 4" is plenty. If you start looking at a 64 - 66mm or bigger turbo, then you need to start looking at 5".

What are your future plans for the truck?

Always look at what you have in mind later down the road and pick the parts accordingly so you're only buying parts once.

 

I am going to keep the turbo stock. Basically just the three engine mods. Bully Dog, k&N CAI, and exhaust. Not looking for anything more than that..

 

Go with a 4" and you'll be all set then.

You're truck already has a 4" exhaust anyways, all you really need to do is something like a Magnaflow direct fit muffler. The rest of the system is fine.

http://www.magnaflow.com/02product/s...e=DURA&id=2457

Do they do emissions testing in IN?

 

oh I forgot to mention that my exhaust is a 4in down pipe opens to a 5inch I want to put a bigger turbo later in life so I left myself open for other possibilities

 

I'm from Idaho and they don't do emmissions testing here.. I was kinda wanting a full exhaust so I could get rid of that cat converter as well..

 

No emission testing in IN. thank god.

 

A tree hugger, climate change believer and douche bag-hypocrite Al Gore's worst nightmare.