Most free flowing exhaust for Toyota MR2 turbo?

For a Toyota MR2 Turbo, one of the most popular options for a free-flowing exhaust is the HKS Super Drager or the Apexi N1 system. Both options provide significant performance gains by reducing back pressure and enhancing turbo spool time. Additionally, aftermarket downpipes, such as those from Berk Technology, can further improve exhaust flow and overall efficiency. It's essential to pair these exhaust systems with proper tuning to maximize performance benefits.