Is it worth it (sound wise) to change the stock exhaust on an '09 WITHOUT changing to hi-flo cats. I mean is there a decent amount of difference in the sound. With some GEN IV's throwing a CEL don't want to chance it. Although heard the corsa with roe cats from a fellow forum member and it sounded AWESOME!!
Don't really care about increase in HP, just want a louder more aggressive sounding exhaust.
Don't really care about increase in HP, just want a louder more aggressive sounding exhaust.