Exhaust
1. Is there any performance difference in stainless steel muffler and aluminized muffler??
2. Whats thte difference between a oval and round body muffler?? The round one is louder right?
3. I heard that the longer the length of yhour muffler the quiter is it. Can this be true? Does it effect performance?
4. If a height and width of a muffler is bigger then it is quiter right? Any performance difference?

Converter
5. Whats the difference in oval and round body?
6. Does the length effect it's performance?
7. Whats OBD-I and OBD-II?
8. What kind of convert do you recommend?
9. Whats the proper converter for a 94 Civic EX?
10. Any difference in stainless steel and aluminized?


-Thank you.