yep miss low end torque too... my little VG30de was pepper till ya compare higher rpm numbers, just part of the game. Haven't gotten a chance to drop cash like i used to on the Z either, playing the mostly stock game for a while.

 

2 Guys Garage on Speed just did a STS C6 Corvette for a Marine who lost his legs in an IED explosion. They didn't show any numbers, but they explained that the sizing of the turbos prevents lag and that the extra long piping is in essence, an intercooler. This system was designed to work with the stock cats as the turbos are placed at the back of the car and won't affect emissions like many aftermarket turbo systems designed for non-turbo cars. The turbos don't get the heat like they do in an engine bay and no mufflers are needed. The fact that these seem to be used primarily on Corvettes and Camaros, Mustangs, Z's, trucks and the like kind of shows where they are marketing. Here is a link to the site that shows the 2 Guys Garage episode that will be on again this Wednesday: http://www.ststurbo.com/

 

^^ you explained it better than i could for the size turbo and little PSI they make decent numbers that same site you referenced has some dyno sheets for several of the applications.

 

Pretty decent numbers looking at the site. 700whp GTO Giggity

 

I think that STS tries to play it safe since their market is for N/A cars with higher compression, hence the lower boost. The turbos are sized to reduce lag and to make a better gain that a supercharger or centrifugal supercharger. The power levels are safe enough to give better performance while keeping the stock reliability. They are perfect for a guy with a Camaro SS or Mustang V6 or truck who wants a sleeper with enough power to handle most situations on the street.

I know when I first heard of them, I was not exactly impressed. Rear mounted turbos? But after reading about them and seeing a number of programs on Hot Rod and 2 Guys Garage, they seem to make sense for the average person who wants a bolt on system that makes safe, reliable horsepower. About the same as running a 150 shot of nitrous without the risk. And, emissions stays the same, which is important in states where it is tested.

 

^ +1