I have MAC long tubes and hi-flow cats on my 93 Conv. The system provides a loud deep tone that is still tolerable. The sound is loud enough to get people's attention. The car gets a lot of attention as I drive through the neighborhood, even the chevy guys can't resist and have to look up and see what's coming down the road.
The other advantage is the increase in power associated with this combo. I shaved 0.55 sec after I ditched the stock headers and hi-pipe for this exhuast set-up.
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'93 GT Conv.
13.35 @ 104.8 mph
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