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6.4L Performance Parts Discussion What has or has not worked for you?

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Old 12-27-2010, 01:56 PM
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Exhaust System

I am looking to order a 4" Downpipe, and debating on 4" or 5" the
rest of the way. Any suggestions on size or brand? and also How
hard is the installation? Thanks for all help
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Old 12-27-2010, 03:08 PM
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I like my Flo pro. It's good for the money. Most people will say 5'' over 4'', but I haven't heard both in person to hear the difference...as far as performance of both, most people say there is no gains from one to the other.

A good quality stainless system is Magnaflow for the money.
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Old 12-27-2010, 03:46 PM
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If you want a more aggressive, deep tone, then go with 5".

I also suggest Flo-Pro. We have both sizes as well as the 4" down pipes on our site.
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Old 12-27-2010, 07:04 PM
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Both Flo-Pro and AFE make good kits. I ran a 4" AFE downpipe back exhaust for about a year on my truck and loved it. It had a really deep and throaty sound to it. I am now running a custom 5" exhaust setup.
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Old 12-27-2010, 09:08 PM
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Whats the difference in sound between the 4" and the 5"? Thats really what im going for, and what are the prices on them?
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Old 12-27-2010, 09:29 PM
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5" has a deeper exhaust note.
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Old 12-27-2010, 09:46 PM
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so what would i spend on a 4" downpipe and 5" back?
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Old 12-27-2010, 10:27 PM
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if you get the down pipe, on the install you will either have tocute the stock down pipe way high to get it out or drop the trans back, i actually dropped the trans back ever so slightly to get it out as a whole! the 5" tone sounds really good, i dont have any of the " hair dryer" complaints that others have an i do have a muffler. The two above are top brands and just from experience mbrp and magnaflow make a good product, i dont know if they have dpf delete tho.
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Old 12-27-2010, 10:47 PM
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I think im gunna get flo-pro and the 5". And i want to take the other out as a whole. If i bought the 4" down pipe and 5" from there, does it include the Deletes? "Clutch" What muffler do you have and is it possible to make a video and post it so i can get a idea of the sound with the muffler? thanks
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Old 12-27-2010, 11:00 PM
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I just have the flo pro 5" with muffler. I will take video tomorrow sometime
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