I've got Borla installed on my Xfire and in my honest opinion, its the only quality way to go. Install this exhaust and some drop in air filters, and you get a relatively large hp increase. It sounds very refined, yet aggressive. I am very pleased with my purchase, especially because it is such a quality exhaust system. From the second you open the box you just know its quality. The dual oval also looks great on the car, really compliments the body style. Don't be fooled by the pic on Borla's website, it looks great.