Remark s Catback R1-Spec offers a featherweight, high-flow single exit exhaust solution for the Subaru WRX VB 2022-2023. Crafted entirely from titanium, this system weighs merely 16 lbs (with resonator), slashing a hefty ~22 lbs. compared to the stock exhaust. Boasting 3.0 mandrel bent piping, a high-flow straight-through muffler, and a sleek 4.5 slant-cut tip, the R1-Spec optimizes flow dynamics, minimizing restrictions. Opt for the resonated version for a quieter ride, or add a bolt-in silencer, available separately in two sizes. Remark s eschews pie cuts in favor of mandrel bends, eliminating unnecessary welds that can compromise durability and induce exhaust turbulence. This streamlined approach not only mitigates potential points of failure but also ensures smoother gas flow, akin to a seamless downhill luge run, enhancing engine performance and power output.