What size exhaust piping should I use with my turbocharger?
You want the area after the turbocharger exhaust outlet to be under as little pressure as possible. 2.5 inch piping with a high flow muffler should be installed at the very minimum. 3 inch piping would be even better, and an exhaust cut out would be a great idea for racing. Any muffler shop that works with performance applications should be able to assist you.
