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While your at it do research on the best flowing mufflers because even though flowmaster claims to be the best they are far from it in flow technology. I will not offer a best or worst opinion as you should do your own research to make your own opinion. They do make them to flow well and still not be loud. Mark
 

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I have been using summit fully welded turbo mufflers for years , they flow well they sound good and they are cheap. The only thing I do is hit them with high temp paint to make them last longer (rust) No clue as to the flow on them however they are strait through with a baffle inside to bounce the sound around to lower the volume. That is what is going on my 89. I hope to make my exhaust much better in the future but for now its a 3" single.
 
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