V6 has a flowmaster single exhaust on it. I wanna go dual. How much do you think it would be for a dual buy and install?.. and would it be cheaper to buy a new bumper or cut and repaint? and i'm guessing there will be like no power added?

 

Careful, most v6s need the back pressure from single exhaust for low end performance. If it's allowed to flow too much it will be a dog off the line.

 

meaning?

 

meaning U may lose some power at low RPM's.. is the "look" worth it?

 

This.

 

To answer the question, your best bet would be an OEM GT H Pipe with GT Mufflers. I just sold an OEM H Pipe for $60. You could probably get a full setup for $150-$200 if you looked around.