I have narrowed it down between these two systems. Any pros or cons for either, I would greatly appreciate. I would love some sound files from your trucks too if you have them. Oh yeah, I have a stock turbo from what I understand the stock turbo on my 01 HO it is 3.5 inches all systems will have to be 3.5 there please correct me if I am wrong. What is the difference in lenth of the 3.5 in sections on these two systems. Thanks Roger

 

http://www.youtube.com/watch?v=H6h-lebL1bc
Thats a magnaflow with a 4" d/p sounds good and fit mint.
I've installed a MBRP aswell and they sound and fit just aswell

 

You need to check now, but my old MF system used a 3.5" down pipe not the 4" most other companys use. It was a good system other than that. I am happy with my current MBRP system.

 

That is one of the things i was wanting to find out. The systems say 4" from turbo but, I think where it bolts up to turbo is 3.5. What I need to know is how much 3.5 inch tubing is used.

 

The Down Pipes Are 3.5'' Then To 4'' Right Around The Trans Cross Member

 

it will flange right up to the stock turbo. If you can wait a few, I just uploaded a picture of my stock side by side with my 4" MBRP to give you a little visual of them both.

 

They all flair at the turbo but the MF system only flairs to 3.5" then flairs to 4" at the first joint around the cross member where as the MBRP goes right to 4" at the turbo.

 

I think I have seen these where you can get either a 3.5 inch downtube OR you can get the full 4 inch downtube, it's available either way, turbo back. I just ordered a Magnaflow system with a 4 inch downtube but the dealer said either way, my choice. At least on the MagnaFlows....

http://www.magnaflow.com/02product/d...eriespopup.htm

 

Hi Rocknram i know the MBRP system for that year is a full 4" from turbo back
If that helps you