Ive ran 3 inch full exhausts since like 79-80 and so did all the other really fast street cars, looking for the pea shooter pipes or even a 2.5 into 2 behind the mufflers and since the mufflers back then were not the best it was always a factor to size up the competition.

Just like the "fast" street cars of the 80-s sporting Radial T/A tires...really not so fast.