Call the guys at Alamo Autosports on Colorado Lane in Arlington. They can help you out.
My experience so far-yeah they can help you out, but will they. And at what cost? I guess I'm not part of the "in" crowd yet as I haven't been able to get good service from them. I've tried numerous times to give them a chance, but always left with a bad taste in my mouth. The last time I was there I was getting a quote to build a 3 inch exhaust from the downpipe back, including external gate. Bryce quoted me over $1400 to do it. Take off the $200 deltagate and their fancy $200 muffler and that still leaves $1000 for a few feet of ALUMINIZED pipe and the labor. I know the downpipe may be a little tricky, but we all know how simple the rest of the exhaust is. That's the last time I have been down to their shop. I'm sure I'll try them again, just don't know when.
P.S.: I have a small Saab intercooler you can have for about $30 if you want it.