yeah im not doing anything major with my jeep. my dad and i are restoring it some and just making it a nice extra car and eventually i would like to do some trail riding once i get a better suspension on it but i know exhaust wont get me much if any performance gain. it would be more for show than anything if i do exhaust. i was just trying to see if anybody has used them to do a dual setup on a straight 6. ive seen dual on V8 jeeps but never on a I6