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2012-2015 Honda Civic Si Coupe Invidia Q300 Polished Stainless Rolled Steel Tip Cat-Back Exhaust HS12HC2G3S

Pricing: $695.10

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Invidia Q300 Polished Stainless Rolled Steel Tip Cat-Back Exhaust HS12HC2G3S

The flat bottom shaped muffler design results in improved high speed aerodynamic performance. The muffler inside contains continuous piping design and use of Advantex material that results in an excellent free-flow exhaust with optimized back pressure, giving greater horsepower, torque gains and a rich deep sporty sound.

The use of SUS304 polished stainless steel piping, Mandrel bent to shape, state of the art CNC machine made flange, Robot TIG welding and double wall polished stainless steel or Titanium tips, provides outstanding durability and appearance.



  • New gaskets and hardware
  • 304 stainless steel construction
  • 2.76" Inch piping diameter
  • 4.33" Inch stainless exhaust tip
  • Resonated mid pipe
  • Exhaust hangers welded onto the OEM locations to make for a direct fitment



2012-2015 Honda Civic Si Coupe



Brand: Invidia
Product Type: Exhaust Cat Back
Pipe Diameter: 70mm
Tip Diameter: 110mm



Check out more Invidia products here! If you are looking for something else, you can browse our Parts Catalog!


What Is an Invidia Catback Exhaust?

One of the more popular types of Invidia exhaust systems is a catback exhaust. This is the section of the exhaust that is attached to the final converter of your car’s exhaust. It usually consists of a muffler, resonator and rear pipe; the purpose of a catback exhaust is to help your engine breathe while strengthening its sound.

This simple modification will give your car more power and increase fuel economy, making an Invidia catback exhaust the perfect aftermarket modification.

Why You Should Choose an Invidia Exhaust

Invidia offers drivers a seemingly endless array of choices to customize their car’s exhaust. Each product is guaranteed to be perfectly crafted and function flawlessly, as well as come at a very affordable price, especially considering the level of quality you are getting.



This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.



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