I have a 2.25 hi flow catalytic converter that I am getting ready to put on, but my question is this. Right now I am not using a converter, they just put a resonator in. If I put the hi flow on will I lose power or gain? Also what about if I get the RK sport O2 sensor thing that is for running without the converter? Please let me kno

most usually gain....especially those not boosted...


read this article.... http://www.magnaflow.com/05news/magazine/05sportcpg04.asp mid page.... about cats...

as long as you are runnign straight through stuff, you shouldnt have a problem.


and seriously, read the article... i know i posted this in the FAQ.... alot of the things people ask here can already be answered if they would simply take 5-10 minutes and read something rather than waiting till a problem occurs and then being clueless on it.


unless you are boosted you really have no reason to run without a converter... performance wise really.

exactly what event said. you are better off running the high flow cat than just a resonator. now, if you had a turbo or supercharger, it'd do very well with that decrease in backpressure, however, you need your low end torque so definitely. use the cat.




I was a retard, and now I'm permanently banned.