I have a stock 12 valve. My first upgrade is stacks and a downpipe. What would be the best downpipe for my 12 valve cummins? And I wanted to know what would be some other good performance parts to install and what company?

 

MBRP makes one.

 

do a search "first upgrades" you will most likely get the results you want. company wise its up to you. i got pretty good deals from pure diesel power.

 

Where are you located at? There are alot of things you can do with a 12v with a p pump that dont cost hardly any money, youjust need to understand how they operate.

 

After upgrading exhaust and the upgrading the turbo, I wish I would have known about the hx40 DP to HX35 turbo adapter. I would have just bought the HX40 DP first because most aftermarket turbos are going to use it. Then when you do upgrade the charger it will all bolt up and you can sell the adapter to the next guy. Just my thoughts.

 

where can the hx40 downpipe to hx35 turbo adapter be found at?

 

http://www.pdrdiesel.com/oldsite/3540Adt.htm

 

I live at the top of ohio. I am most likely going to get the #6 fuel plate after the downpipe.
Thanks everyone for your help. any other knowledge you all have for me will be great. Thanks a bunch everyone.

 

I Have a 4" down pipe that bolts up to the HX 35. It is and AFE. Also I would think about getting a #10 and making it into a #100. Also if your going to start adding horse power your transmision is going to need some upgrades

 

Why not just turn the stocker into a 100?