Like I've told people a hundred times, the snorkel lookin thing is not the air silencer! The big thing that looks like a muffler in the air inlet is the silencer, if you pull it off it necks down to like 1" on the inside. I don't know about the '91-93 cars, but in the '87-90s you can cut the necked-down part out with a knife, and it makes the car sound a lot cooler anyway.