i say LNF>LSJ. its only limitations are parts availability, and the tranny not being able to support much more power. my belief is the internal construction of the tranny is made of powdered steel, not as strong as machined steel. direct injection is the sex when it comes to efficiency. plus, with the cobalt ss/tc, upgrade intake, charge piping and intercooler and you're probably looking at 20+hp.
now on to ksmutek. in your situation, its hard to say. it would most likely come down to traction. with 23 psi in boost, thats a lot to the wheels. in a fwd car, its gonna be tough to put all that to the wheels. launch control with the LNF cobalt(ss/tc) will help a bunch. also no lift shift will help keep the turbo in boost, eliminating a drawback to turbocharged applications. the ss/sc is intercooled as well, but its generally referred to as an aftercooler. the coolant runs by the intake mani if im correct, then goes to a front mounted heat exchanger and goes through the process again.