5.9 exhaust advice?
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Joined: Oct 2009
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5.9 exhaust advice?
I have a 02 quad cab with the 5.9 with a dynomax muffler sounds great but i want more. what CAT should i use? looking for something that will make it sound better and more flow for power
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Joined: Oct 2007
Posts: 55
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From: Illinois
headers, y-pipe, high flow cat or just gut yours. i gutted mine and the check engine light didn't come on due to the cat underneath the middle of the truck is a secondary, meaning it doesn't really do much. louder too