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Discussion Starter · #1 ·
The all-new MagnaFlow CARB Compliant Catalytic Converter will effectively reduce exhaust backpressure, help you to get rid of the clogged OE converter, and allow your 2004-2015 Toyota Prius to pass the annual emissions test in flying colors. Designed with the exact specifications of your model in mind, it will offer the best fitment and performance possible.

MagnaFlow - California Grade CARB Compliant Universal Catalytic Converter


2004-2009 Toyota Prius 1.5
2010-2015 Toyota Prius 1.8
2012-2015 Toyota Prius Plug-In 1.8
2012-2015 Toyota Prius V 1.8


Professional installation is highly recommended. May require custom fabrication, cutting and / or welding along with specific automotive knowledge.


  • Type Universal
  • Series California
  • Inlet Diameter 2.5"
  • Outlet Diameter 2.5"
  • Overall Length 11"
  • Air Tube Adaptable No
  • Body Type Spun
  • Body Shape Round
  • Body Width 4"
  • Body Length 11"

Visit this page for more details about the new MagnaFlow product.

Super Moderator
571 Posts
Just because the ad says it is "CARB compliant" and has "California" in the name,
I strongly suggest that anyone considering this should get the make and model number and contact the California EPA directly to be sure it is actually approved for use.

Then......unless your present CAT is plugged or damaged, it is highly UNlikely that changing it out will result in any significant change to how the vehicle runs.
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