I am in the market for a Cat back exhaust and I am deciding on the HKS knockoff (X02) off of E Bay or a used Borla exhaust.

The guy for the Borla is selling it to me for $500 + the OEM exhaust

vs $400 for the X02.

The soundof the X02 is impressive (you tube) Does anyone know how the Borla stacks up and what would be a wiser choice in your opinion?