+1, you will gain Horsepower from removing the cats, cats restrict airflow which means if you take them out you will have a lot better airflow, which means more power. And depending on your set up it will probably sound good without them. Like 1slosix said about the prochamber is nice, it will make it sound amazing with some good mufflers. If you are taking out the cats i wouldn't recommend any mufflers that are too loud (i.e. Pype Bombs, Loud Mouths ect...)
---------- Post added at 10:25 PM ---------- Previous post was at 10:25 PM ----------
Originally Posted by 1slosix
You wont loose power..in fact youll gain a couple hp thanks to freeing up the exhaust velocity a bit. Might i suggest looking at mac and their off road prochamber. I had one on my old gt with flow 40S and to me it was sex. Of course thats just my preference..
Do you have a vid of that exhaust