Tsudo 70mm S2 JDM Catback Exhaust For 2006-11 Honda Civic Si k20 Coupe

TsudoSKU: 20-9359

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Fits: 2006-2011 Honda Civic Si Coupe

Product Type: S2 Catback

  • 70mm tubing tuned to bring out the full potential of the Civic Si K20 engine
  • Features 70mm / 2.76in diameter piping with a 101mm / 4.0in diameter exhaust tip
  • Perforated core straight-through muffler design for smooth, unrestricted performance
  • Muffler and piping polished to a mirror-like finish
  • Includes removable exhaust tip silencer
  • Utilizes the factory exhaust hangars
  • Produces a deep, aggressive exhaust note
  • Tuned piping diameter maximizes power gains
  • Improves horsepower, torque, throttle response, and fuel mileage
  • Manufactured from T304 / SUS304 stainless steel for durability and high corrosion resistance
  • CNC machine mandrel-bent stainless steel tubing for maximum exhaust flow
  • CNC cut flanges and fully TIG welded construction
  • Significant weight reduction compared to OEM exhaust system
  • Includes all necessary hardware (bolts and gaskets) for installation
  • Bolt-on installation with typical hand tools

Customer Reviews

Based on 3 reviews
Tyler Couch
Great product and great quality

I love my new tsudo catback exhaust for my 09civic si sounds mean not all ricey.


I’ve been trying to look for an exhaust for my fg2 for the longest time and was debating between this exhaust and the invidia N1 exhaust. I’m so glad I chose The Tsudo Catback for the price, let me tell you it sounds amazing, nice deep aggressive sound with no rasp at all!

Triston Pierson
Sounds great

I have the skunk 2 alpha header combined with this tsudo catback and it has a very deep aggressive sound and doesn’t sound ricey at all like all these other Honda’s I love it great job on the exhaust keep up the good work!

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