Replacing FFR MK4 muffler with Flowmaster Slimline

[mkm492]

I have a MK4 Roadster built by Levy Racing. I have about 4K miles on it and wanted to replace the muffler with 30" Flowmaster Slimlines, but was hoping to keep the original stainless sidepipes and assemble new sidepipe pieces to bolt on the headers.
- Where can I buy the 4 into 1 collector pieces with flange and the support brackets? Thanks. Mike

[mkm492]

No Factory Five Techs out there? Georgie at Gas-N was really helpful (Great guy). I guess I'll cut up the FFR pipes. If I screw it up I'll get GAS-N's. Good winter project.