Mat_Mandangle Posted May 23, 2014 Share Posted May 23, 2014 I'm ready buy a downpipe, and I've been going back and forth in my head about what type to buy. I would like to pass emissions, but reading stories about Invidia catted dps and Grimmspeed catted dps failing emissions, it makes me want to run without a cat and just swap before emissions tests. I guess my question to everyone is: Are there any downpipes that will certainly pass emissions, and if there are is it worth the cost to save up and buy that or just run catless? Appreciate it! -Mat Link to comment Share on other sites More sharing options...
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