Muffler core kits?

Anyone know where I can get a kit to core the stock 748/916/996/998 mufflers to convert my 748 to a straight-through perf tube, with the flanges, glass and ss rivets?

BCM used to sell these kits, but not any more. Any others out there?

(I don't want the half-way coring service which retains some of the original baffle chambers, I'm looking for the full straight-through tube kit - or service)

Thx.

Aircone offers a nice perforated core. Here is the tip from the old Cowin Index..

http://www.cowin-tech.com/duca...flers

8. This is where Aircone in Nevada (702-566-1077) will come to your rescue. Have them make you up a 4 inch O.D. end cap with a 1 5/8 inch I.D. perforated tube attached that protrudes 15 3/8 inch into the muffler. A pair made of steel will set you back about $50 and stainless construction is $20 more.(Steel ones can be painted with high heat cast finish paint).

Thanks Dave!