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Old 02-15-2013, 03:51 PM
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Exhaust Question

Hey All, Im new to the forum and diesel world, just bought a 97 F-350 with the 7.3, got a 166k miles on it. Its cclb. Im wanting to do something with the exhaust, I thought about buying a down pipe and straight piping it to the back, no muffler or cat (no emission checks in my state). Has anybody had any issues with doing this (decresed back pressure). Any opinions are greatly appreciated.
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Old 02-15-2013, 03:59 PM
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that is what almost everyone does the factory down pipe is very restrictive. also look into doing the 6637 air filter mod
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Old 02-15-2013, 04:01 PM
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Exhaust Question

It's not a gaser. Straight pipe it! You shouldn't have a diesel if it isn't straight piped


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Old 02-15-2013, 04:06 PM
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lol, thanks guys, the more I look threw exhaust kits the more I find without mufflers or cats so it looks like the norm, could you elaborate a little more about the air filter kit?
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Old 02-15-2013, 04:11 PM
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Exhaust Question

It's not a kit it's just a filter you can buy. Napa sells them. And the part number is 6637. You just take your air box out and get a small piece of 4 inch exhaust piping and put that filter on. Basically a homemade cold air for like 40 bucks


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Old 02-15-2013, 04:15 PM
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Yea I got to remember to use the search function before I ask questions. I found it, looks pretty simple. Thanks for the heads up on that one
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Old 02-15-2013, 04:18 PM
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Also a WIX number 46637 awesome
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