Just wondering if there is such a thing as a BiTurbo exhaust for a 76 Sachs? I want to make it sound a little better, but then again, I want to keep the old-school look with the stock exhaust, any stock-looking performance-exhaust's out there? if so, let me know. I am at a loss on which I should go for, biturbo or stock exhaust. might need a little help with this one.