We have a dual on our car and it sounds amazing, but that is completely subjective.

We paid 1600.00 from a reputable shop, if you can get it for 200.00 then go for it, but don't settle for crimp bends or pipes that bang. I don't know how the labor rates are down there, but for our system there was about 4 hours of welding. That plus the 800.00 in material cost made for a costly, but worth it system.

Good luck!