You would have to have get a custom exhaust system fabricated by a competent shop in your area. The performance aftermarket in the USA does not make systems for your car. You will probably have ground clearance problems with a true dual exhaust system. Another alternative for you is to purchase an original equipment reproduction exhaust system. Here is a link to a source in the USA:
They make stainless steel as well as aluminized mild steel versions. I used the Cutlass single exhaust pipe from the engine back to the muffler. Then, I used a Jetfire muffler with dual rear outlets. This is called a “single in – dual out” system. It has a nice sound without being annoyingly loud. Good luck with your car.