gravity5
+1y
The 2.5 inch piping is WAY to big for a crx, and will create more db out of your exhaust no matter how good a muffler you have. I really doubt your 1.5 or 1.6 liter needs anything bigger than a 2 inch pipe, unless is is seriously built and even then for the street a 2.25 would be more than enough. It is obviously not turboed, in which case 2.5 or bigger would be OK.
I might suggest borla they have a nice tone, are stainless, and are less than 200 dollars, and if you want to keep the thieves away get it in the brushed finish, and have it tucked up high with a tip that is no bigger than the actual piping so it looks more stock.