I searched and came up with dickfist, so here goes.

I have a 93 GSR with a DC 4-1 header and I am going to get my exhaust put on this week. I am using an ES oval muffler(2 1/4).

My question is, the catalytic converter on the car was fucked up. I am wondering how loud it is going to be if I just run 2 1/4 piping straight from the header to the muffler?

This would just be like using a test pipe correct?, or would this make my car run shittier?
Thanks in advance,
ZACH

Also, any places in Pinellas that you would reccomend.