COBB Titanium Cat-Back Exhaust

COBB's Titanium Cat-Back for the 2022–2026 Subaru WRX uses grade-1 titanium tubing and flanges with grade-2 titanium hangers and back-purged welds. The system transitions from a 3-inch main pipe to dual 2.5-inch sections, two straight-through oval mufflers, and four 3.5-inch blued tips. At roughly 24–25 pounds, COBB lists it as about 30 percent lighter than the stock exhaust. Fitment includes manual- and CVT-equipped USDM and ADM cars, including the 2024 WRX TR. COBB explicitly states that no tune is required and classifies the exhaust as non-emissions-related.