Ha' peeps i have a 95' Honda civic dx coupe and i noticed a week later that i have a straight threw exuast with a stock muffler. I noticed it a week later cuase i can only play with it on weekends. As i was driving i said this is a lil loud and when i down shift it back makes poping noise how can i solve this with out getting a hole new exuast system my friends said it would be even louder and more clear but i wont to know from other people. Does it gain any horse power like that are do i need to replace the hole freakin thing please let me know..................?