You ran 13s with the stock turbo at 16 psi? What tires and clutch? Were the intercooler and crossover pipe stock? Capri's are either alot faster than I thought or you are a damn good driver. I thought that with my 6-puck clutch, rt-615s, a bunch of weight reduction, an 11, ms, a stiff rear suspension, a fmic and a 2.5 in crossover pipe I might hit 13s if I had an awesome run.