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Tsud Civic Si 2012-15 4dr Bellmouth Header Downpipe Catback Exhaust

Tsudo Performance

20-1226 + 9379
Out Of Stock
Combo Catback
Not CARB Legal /Off-Road Use Only:
Order will NOT Be Shipped To CA, NY

SKU: 20-1226+20-9379
Fits: 2012 2013 2014 2015 Honda Civic Si sedan only
Product Type: k24 Combo deal for Header downpipe and catback exhaust
Bellmouth Header downpipe Features:

  • Features Bellmouth is a 4 inch Mouth to a 76mm / 3inch piping
  • Unrestricted performance For max performanc
  • Eliminating the catalytic converters
  • Improves horsepower, torque, throttle response, and fuel mileage

Cat back exhaust system Features

  • 70mm / 2.76in diameter piping with a 101mm / 4.0in diameter exhaust tip
  • Unrestricted performance For max performance
  • Utilizes the Civic factory exhaust Hangers
  • Tuned piping diameter maximizes power gains
  • Improves horsepower, torque, throttle response, and fuel mileage
  • CNC machine mandrel-bent stainless steel tubing for maximum exhaust flow for K24 motor
  • Significant weight reduction compared to OEM exhaust system
  • Includes removable exhaust tip silencer
  • Includes all necessary hardware (bolts and gaskets) for installation


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