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Cat Back Systems

Invidia Q300 Cat Back Exhaust Stainless Steel Tips 2011-2012 WRX/STI Sedan Catback

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Stainless Steel Tip Catback

Invidia's new Q300 catback exhaust system for the 2011 STI sedan provides a great alternative to the standard N1 style exhaust system without compromising power or quality. Traditionally, if you wanted a quieter exhaust system, you had to sacrifice performance to get there. Not anymore. Enter the Q300 series performance exhaust from Invidia. Q300 exhaust systems utilize specially sized resonators and muffler baffles to maintain power output while still producing a deep and mellow touring exhaust tone. Still skeptical? The Invidia Q300 will increase horsepower and torque tremendously all without disturbing the neighbors or raising the eyebrows of any local authorities. The ultimate in stealth power! Invidia exhaust systems include all hardware and gaskets needed for a seamless installation on your STI sedan.

  • Notes:
  • Pipe Diameter: 76mm / 3"
  • Includes gaskets and hardware
  • Titanium Tips shown in photos.  Stainless Steel Tips are with this system. 
  • Subaru STI 2011-2012 Sedan Only will not fit Hatchback Model.


Additional Information

Manufacturer Invidia
Color No
Warranty Manufacturer
Installation Hardware Included N/A
Piping Material N/A
Silencer Included N/A
Tip Material N/A
Tip Quantity N/A
Tip Shape N/A
Tip Size N/A
Make Subaru
Model WRX,STI,
Year 2011,2012


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Disclaimer provides fitment information provided to us by the manufacturer.  However, please make sure the product you are purchasing will fit your year, make, & model Subaru.  For example, one product may fit only a 2002-2004 WRX, but also fits a 2005-2007 STI.  This same product may not fit a 2005-2007 WRX.  Either way, the product will list the fitment years as follows: 2002, 2003, 2004, 2005, 2006, 2007.   So please be sure the product will fit your specific application.  The majority of the products listed on our site will have the year, make, & model fitment information directly in the product title. will not be held liable for purchases made for the incorrect application, and a restocking fee may be required.  If you have any questions, PLEASE contact us before making your purchase.  Our knowledgeable staff will be happy to assist you!