Cost vs benifits...

The more money you put into a stock turbo the more money you have just pissed away. A new exhaust housing runs about $350-$450. That might give you a slight bump in change, you will still have the stock center section which was never designed to take more then 22-25psi... It will never be a turbo that can match what a mid frame turbo can do.

Cost example... There is a superduty turbo for sale on one forum I noticed today... 1.00 exhaust housing, ATS compressor housing and a WW...

He is asking $500 for it... and its just sitting there.

 

I can get a 1.0 exhaust housing for $150 though... It's not about the overall power output that I see good in them, it's the fact that it changes the low-rpm lag and lack of power these 1.15 housing turbo's put out.

 

Install larger injectors... No more lag.

Why do you think the 1.00 gives you less lag? Because it makes more back pressure... More back pressures means more side loading on the already weak factory center section.

 

I've seen people over on the ORG who say even with stage 1's with a 1.0 housing, they went back to a 1.15 housing and hated it and they went right back to the 1.0 housing