The MagnaFlow Toyota GR Corolla NEO Series Cat-Back Performance Exhaust System #19631 turns your ultimate sporty compact into a JDM-like beast that stays at the head of the pack thanks to its modern take on MagnaFlowâ€s signature sound and renowned dyno-proven power gains. This 2023-2025 GR Corolla exhaust kit represents an all-around performance improvement for your GRâ€s 1.6L without compromises even going so far as to retain your OEM vehicleâ€s factory controllable exhaust valve option using MagnaFlowâ€s own cast 304 stainless steel valves. Additionally #19631 seamlessly integrates MagnaFlowâ€s No Drone Technology (NDT) to ensure optimal driver enjoyment free of any unwanted droning noises that can otherwise occur at cruising speeds. Exhaust kit #19631 features 3” mandrel bent main piping that passes through an 11” NDT tuned chamber smooth Y-pipe transition and two 11” straight-through performance mufflers before terminating in a quad center split rear exit with 4.5” outer and 3.375” inner tips featuring a double wall angle-cut logo etched design with a black chrome finish. This performance exhaust features an easy-to-install direct-fit design that is engineered to replace all OEM exhaust components from near the catalytic converter on back. #19631 is made of durable corrosion resistant stainless steel and produced using advanced CNC precision robotic manufacturing techniques all backed by MagnaFlowâ€s limited lifetime warranty.