Quote:
Originally Posted by bofa
Header to exhaust is true dual. I think your cat to exhaust example is referring to a y-pipe setup where the headers combine into 1 pipe and split after the cat and before the muffler(s).
|
Hm... if that's the case, then isn't that add more weight to the car? Also two separate cat equal to two extra o2 sensors (before cat & after cat)... which means more ecu crap. Also add to that, isn't it gonna cost more for after market parts?