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The aFe Takeda 2.5" 304 stainless cat-back for 2017–2020 Honda Civic Si Sedan (1.5L) features a high-flow stainless muffler, integrated mitered merge collector and dual 4½" carbon fiber clamp-on tips. Built from mandrel-bent 2.5" tubing with factory-style flanges and hangers, this direct bolt-on system includes necessary hardware and was measured to deliver up to +3 HP and +5 lb‑ft on an in-house dyno.
aFe Takeda 2.5in 304SS Cat-Back Exhaust System w/ Carbon Tips 17-20 Honda Civic Si Sedan I4 1.5L
