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post #1 of 35 Old 12-27-2010, 12:56 PM Thread Starter
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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

2008 F250 CC Fx4
2.5" Leveling Kit
35x12.5x20 Toyo Open Country M/T
H&S Mini Maxx
5" Flo-Pro Exhaust with 6" MBRP tip
S&B Intake
Mishimoto Radiator
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post #2 of 35 Old 12-27-2010, 02:08 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.

-Adam
2008 Dark Shadow Grey F250 CC SB
Mini Maxx(KEM tuned), S&B, 4'' DP, 5" Straight Pipe, CS IC Pipe, Readylift w/ 35x12.50 toyos on black 20's, OUO traction bars & blocks, Westin Black Bull guard w/ KCs, UWS Toolbox

2011 F250 KR CC FX4 3.55 rear, AFE Intake SOLD
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post #3 of 35 Old 12-27-2010, 02:46 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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post #4 of 35 Old 12-27-2010, 06:04 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.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #5 of 35 Old 12-27-2010, 08:08 PM Thread Starter
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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?

2008 F250 CC Fx4
2.5" Leveling Kit
35x12.5x20 Toyo Open Country M/T
H&S Mini Maxx
5" Flo-Pro Exhaust with 6" MBRP tip
S&B Intake
Mishimoto Radiator
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post #6 of 35 Old 12-27-2010, 08:29 PM
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5" has a deeper exhaust note.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #7 of 35 Old 12-27-2010, 08:46 PM Thread Starter
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so what would i spend on a 4" downpipe and 5" back?

2008 F250 CC Fx4
2.5" Leveling Kit
35x12.5x20 Toyo Open Country M/T
H&S Mini Maxx
5" Flo-Pro Exhaust with 6" MBRP tip
S&B Intake
Mishimoto Radiator
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post #8 of 35 Old 12-27-2010, 09:27 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.

2010 sti

08 f250
Airaid intake, black max, 5" turbo back (dpf delete)off road only ofcourse
Tint, brushgaurd piaas, hid upgrade, piaas in the back, piaa fogs, lots more and more to add. Any suggestions?
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post #9 of 35 Old 12-27-2010, 09:47 PM Thread Starter
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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

2008 F250 CC Fx4
2.5" Leveling Kit
35x12.5x20 Toyo Open Country M/T
H&S Mini Maxx
5" Flo-Pro Exhaust with 6" MBRP tip
S&B Intake
Mishimoto Radiator
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post #10 of 35 Old 12-27-2010, 10:00 PM
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I just have the flo pro 5" with muffler. I will take video tomorrow sometime

2010 sti

08 f250
Airaid intake, black max, 5" turbo back (dpf delete)off road only ofcourse
Tint, brushgaurd piaas, hid upgrade, piaas in the back, piaa fogs, lots more and more to add. Any suggestions?
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