Quote:
Originally Posted by inferno camaro
Do the l99 mufflers have the same internal design?
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No, they have a little dump pipe inside the muffler. I have had the stockk L99 mufflers, LT headers, and Magnaflow resonated x-pipe for over 20k miles with no issues. The systems sounds fine but I'm thinking about replacing the stock mufflers to make it a little louder.