I think im just gona go with a 4" downpipe and a 6 inch tip for now instead of a 5" exhaust.. anyone know where i could find a 4" downpipe??

 

I got one from DPP when I had my 03SO. It's from Banks and replaces the DP and the turbo elbow. It ran me about $200.00. Pretty expensive!! Try to find a newer 4" in/out elbow and DP from a newer truck...

 

I have the stock DP from my 4" system I took off my truck when I went to the 5" system. IF you want it PM me.

Shane

 

Will it fit on a 03? what else would i need

 

I am not sure if it will bolt up to an 03 or if you need an elbow? Do a little research and let me know..

Shane

 

You will need the newer elbow and one 4" V-Clamp.

 

Where would be the best place to find that elbow?? will this make my truck louder like the 06

 

You can find them on E-Bay sometimes. The dealer has them too. I got lower egts but also a bit of drone when I changed mine out. It probably won't make it any louder unless you are also adding a HP muffler. If you are going to keep the factory tailpipe you will have to cut a couple inches off of it where it connects to the muffler. It's only 3.5" there but flares out to 4" after a couple inches...

 

If you have a local Cummins dealer price will be alot less and they can match the clamp if you take your elbow in. I changed my 03 4-3.5 elbow to a 4-4 elbow off of an 04 and then followed with a 5 inch turbo back expandit exhaust. The truck sounds very quite with hardly any pressure at tail pipe, with the truxedo tonneau I'm pulling 25 mpg as long as I stay under 2000 RPM. I'm running Edge EZ but might upgrade, it is only at stage 2 not ever put it on stage 4 yet. Local Cummins dealer much less than dealers.

 

Hey ksram, do you remember the part numbers at Cummins for the elbow and downpipe? I've got the Dodge p/n for that stuff and the cheapest I can get tham is about $120 total. Is buying that stuff from Cummins that much cheaper?

Thanks
JJ