11legacy1657615895 Posted December 28, 2014 Share Posted December 28, 2014 In the interest of curiousity, I was wondering if any 2.5i guys/gals have high flow cats installed and if they saw any notable change in economy or otherwise. Any issues with install? Just curious if opening the exhaust and going with the takeda intake will net good mpg gains! Link to comment Share on other sites More sharing options...
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