I am wondering if there are any aftermarket cat-back exhaust systems on the market other than the ipd and similar Volvo only systems. I am looking for brand name tuner parts, which are not only cheaper, but often times add more performance and technology. I was also wondering if there are any popular street-tunned cars with similar configurations to that of the Volvo 850 turbo. This way finding performance parts would be easier and cheaper.
(when I say tunner I refer to cars such as Supras, Rx-7s, or the ever popular civic, the street raced tunner cars.)