Well for those of you whom have always wanted one, a JDM company is finally making one. RS Pantera is making a center exit exhaust kit. Short article in the Sept. 2005 issues of RX-7 Magazine (JDM). It is still under development. From the pics it looks like it includes a HF cat as well. Noise level is supposed to be actually quite quiet as they spent a lot on the muffler design (according to the article). They are also developing a rear bumper/diffuser to be used with it as well.

No info up on the site yet, but I just thought I'd post it...
http://www.rspantera.com/

 

sweet.. ive been wanting to see something like this for a while

denward

 

cant wait to see it. although i like the look of the dual

 

i think it'll looks like ***. RICE in my opinion. i've seen MR2s with 'em...nasty.