which provides the most hp and torque? thats what matters to me. would prefer dual rear exit but if a single side exit exhaust magnaflow works better than thats what im going with. can anybody tell me? and please... only replies from people that own a 3.9L v6 with that mod that cant truly speak for it. quieter is what im aiming for too. any replies that could give me a good solid answer would be appreciated. thanks

 

single is the general consensus? with 2.5 inch piping?