jdmcivicsi522

so i did some searching and found nothing but im not done searching. i just knew you guys can help more than anyone or any website. im doing a ls/turbo in my ej1. my question is i have a thermal exhaust on and im looking to get a different one. should i keep the thermal or get a skunk2, apex n1, or make a 3inch and put a apex turbo muffler on it. im looking for somthing that sounds mellow but also with a deep tone to it also. also the motor im ordering is it worth it to get the lsd equipped tranny from a jdm site or are those lsds not good. also i want longer gears what tranny should i go with? any info on ls/turbos or a certain exhaust or anything helpful will help. please no flamming. thanks