I put a Corsa exhaust on my '87 in October. I checked all over and everyone had the same price. I ordered it from G-Force because they seemed the most knowledgeable. They had it at my door in 24 hours. The Corsa's are awesome! With the stock exhaust there would be this annoying drone at 60 mph. Now the only thing I hear is some tire noise and my wife complaining I'm driving too fast . If your interested their number is 913 768-4237.