This idea worked great!! I finished mine this weekend. I found the two exhaust pipes at a local parts store. 3" ID to 3" ID adapter. They cost $2.50 each, other than that and the filter the install was free. Thanks for posting this.

The filter makes quite the sound when you get into the higher RPMs (above 2500 rpms). It sound almost like a set of headers.

Thanks again for posting this.