I've got a few rattles and broken heatshields and what not on my 91 miata. Found a semi-local seller on m.net selling a corksport "dorifto" exhaust. Anyone have any experience build quality, sound level/quality? I know corksport is a reputable vender so I'm not so concerned with a shoddy product, nor am I expecting a real boost in power just a decent replacement that might weigh a little less and make the four gerbils breathe a little easier.