Finally got my cats cut off with my Flowmasters still on. Think it sounds great, better than going out and buying a $300 dollar offroad H pipe. Only problem is the gasoline smell in my garage, but hey, who cares. Surprisingly getting better gas mileage too!

 

Who's tune did you go with to turn off the O2's?

 

Haven't gotten that far yet. I need to find a shop around here that'll tune it for me.

 

Don't let a shop tune it unless they include the tuner so you can retain your stock tune. Better to order your tunes from Brenspeed or AM.

 

I just called my muffler guy. He said he put the O2s back in the pipes and ran a diagnostic on it and nothing showed up.