old topic but I will be replacing the Doug Thorley mufflers with these this week... ordered them today(and they already shipped through Summit)... setup will be Doug Thorley Longtubes, no cats, x-pipe(no resonator) and these mufflers... the Doug Thorley mufflers are a little too restrictive in sound for my taste, these should liven it up some
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2010 Camaro SS L99... has a few mods
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