I currently have a 2-1/2" exhaust system on my '81. It came on the car when I bought it with a SBC and I adapted it to fit my LS2 swap with Edelbrock headers. I am considering the Hooker headers, but don't want to wait until November+ for their entire exhaust system. The current exhaust has a X-over, but is not mandrel bent and reduces to 2-1/4" in the turns before the X-over. I suspect it is hurting my performance and I want to replace it for other reasons too. I think my preference is for a steel system that I can weld and not a stainless steel (SS) system with clamps. The only compatible 3" system I see in Summit is the Pyres Stainless Steel one: http://www.summitracing.com/parts/pye-sgf13s/overview/ Anyone have experience with this company? Summit sells a 3" non-SS system, but it does not have a X-over: http://www.summitracing.com/parts/sum-680102/overview/ Perhaps I could add their X-over: http://www.summitracing.com/parts/sum-642130/overview/ Or is a balance tube as good as a X-over? A company called torquetechexh.com sells a 3" steel system. Does anyone know of them? I also want to experiment with muffers as the Flowmaster 40, which I think I have, are too loud. I am consider ones with a valve such as the DynoMax VT. If you know of other 3" systems, I would appreciate reading about your experiences. Or tell me that my preference for plain steel is crazy and I should simply get the stainless Pyres system and be done with it. Thanks!