so i have the stock dual exhaust on my t2
and i have a single pipe sitting at my house
should i run straight pipe made by dynomax, or keep it stock?

 

Well with a single pipe you will lose some weight(which is always good).

What size is the pipeing?

 

I am running straight off of my twins and it is loud but performs awesome!!

If I were you though I would do a phase instead of an upgrade. what I mean by that is instead of just an exhaust, do intake, exhaust, injectors, and a chipped ecu.
This is the safest way to do a good Modification.

 

i have an rtek tuned ecu which allows for bigger injectors, so i think thats coming up soon

gotta fix the smoking first

 

Is the exhaust you're planning on using, the one that was next to the S5 you sold me?

'cause you may want to leak test it, some of those welds looked a little spotty. Let us know how the install goes though