You can count me in as a customer if you get this figured out. I have a 93T 3.0 4by automatic. Living here in salt land results in low life on exhaust systems. Mine may make it through the winter. That stupid crossover pipe is about the dumbest thing ever invented. Especially for the Japanese! Anyway, if you can get a crossover system built that will bolt on to a stock converter and a stock O2 sensor location, that is perfect. Would also suggest that the muffler should be just ahead of the rear axle so that the tailpipe is exiting to the side ahead of the wheels. The longer the entire system is the more there is the chance of condensation and rust through. Found years ago that if you took a chevy truck and put a muffler right on the crossover pipe, ran a side exhaust, the system would never rot. A bit louder in the cab but not objectionable.

One more thing. The olds 350's (not chevy motors) used to have the passenger side manifold with a 45 degree dump for duals and a plate over the crossover 90 degree dump. If you wanted to go for either dualies or single exhaust, all you had to do was move the plate from one spot to the other.

Anyway, please put me on the list. Thanks.