Any tips for my situation or general theory advice S-Kid?
I have a sr20 with standard exi-mani, tomei style dump pipe, 3" to a crappy looking cat then 3" all the way to a xforce 3" with (guessing) 5" tip.
Currently too loud, probably flows crap, looking to change the cat and get some sort of quieter muffler. Still haven't experimented taking my flatmate's kakimoto from his r32 to put on to see if it's quieter but I'm expecting it would be.