Hey guys kinda new here but learning stuff everyday. I have an 03 evo with only a magnaflow catback. I would like to add the ets air filter kit, not the intake system. And their catted tp.I tried searching for a few hours last night but it seems almost everyone runs the intake version. My question is does the filter kit require tuning ? Am I able to drive it with the catted tp and air filter kit safety? Thanks for the help

 

My tuner taught me this: Any intake, exhaust, boost or fuel change will require a re-tune

And yes, after adding the open intake & high flow CAT you can drive it directly to the tuner. Just stay out of boost