Cat/Dpf delete Exhaust Sound - Ford Powerstroke Diesel Forum
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post #1 of 10 Old 03-14-2011, 09:51 AM Thread Starter
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Cat/Dpf delete Exhaust Sound

I got an 2010 f-250 with the cat/dpf delete and no muffler.... Now when i speed up the sound of the exhaust is the same ( like a hair dryer) never changes like my 6.0 did when i gave it the gas. I know they are too different engines but i got passed by another 6.4l and when he speeded up his exhaust sound , sounded like my 6.0 it had a little bark to it , mine doesn't , so my question is what do i have to do to get the exhaust to sound different ? The size of the delete pipe is just the standard one that i ordered from dpfdeletekits.com O i got the sct livewire .... Any help would be appreciated.

Thanks Guys
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post #2 of 10 Old 03-14-2011, 09:55 AM
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With stock turbo's, it is impossible to fully get rid of the hairdryer sound. The best option and still be able to retain the grunt at WOT is to do 5" exhaust with a muffler. The Magnaflow 5" muffler seems to be the best.

The truck you heard could have had totally different turbo's on it.

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 #3 of 10 Old 03-14-2011, 10:36 AM
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A full 5" exhaust with a 6" tip and 4" downpipe sounds sick. The "hair dryer" noise is present at idle, but when you step on it it sounds like an animal

08 Black CC/SB lariat, billet grill inserts, Toyo 35X12.5R20 open country m/t, Newton lift 2.5" front with 5" blocks
Spartan 275, 5" downpipe back SS w/ 18"x6" tip, AFE Stage 2 PG7
4" custom downpipe being made


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post #4 of 10 Old 03-14-2011, 11:19 AM
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Increase the size of the pipe to 4" or 5" and put a muffler on it.



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post #5 of 10 Old 03-15-2011, 07:33 PM
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Quote:
Originally Posted by madman1234509 View Post
A full 5" exhaust with a 6" tip and 4" downpipe sounds sick. The "hair dryer" noise is present at idle, but when you step on it it sounds like an animal
this is my exact set up too, and friends driving next to me say it sounds very mean when on the throttle.

'08 F350 job 2 CC long bed SRW
H&S Mini Maxx, 4" DP, 5" w/muffler, S&B intake
full deletes
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post #6 of 10 Old 03-15-2011, 08:23 PM
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Definitely. When on the throttle hard with 4" or 5" exhaust (no muffler), these trucks sound mean. Part throttle and idle sounds like a huge hair dryer though. The turbo setup is the direct cause.

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 10 Old 03-18-2011, 06:27 PM
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Quote:
Originally Posted by 08stroker250 View Post
With stock turbo's, it is impossible to fully get rid of the hairdryer sound. The best option and still be able to retain the grunt at WOT is to do 5" exhaust with a muffler. The Magnaflow 5" muffler seems to be the best.

The truck you heard could have had totally different turbo's on it.
Is there any specific magna flow muffler you prefer?

Thanks alot,
Tom

5" MBRP Straight Exhaust w/ 6" tip, SCT Monitored, Limo Tints, 20" LED Lightbar, 8k HIDS, & Some other goodies
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1978 Trans Am Y88 403 84k original miles
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post #8 of 10 Old 03-18-2011, 06:42 PM
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4" downpipe, 5" exhaust. Dumps down towards the ground after the rear axle. Sounds mean. Facing the exhaust at the pavement made all the difference in the world. Also depends on the tune. For example. The 310 has a lot more hiss then the 250...

2008 F-250 6.4 Auto, CC,SB,FX4, 2" lift, 285/65/20, Spartan tuning, Elite studs, Elite egr delete/wastegate, Elite push rods, Spearco Intercooler, cold side pipe,CFM, 4"down pipe,Custom 5" DP back exhuast 543HP/1231 ft-lbs
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post #9 of 10 Old 03-18-2011, 06:47 PM
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I dont mind the hair dryer/turbo sound at idle and part throttle. People dont know what the f*** to think when you go by them, and when going next to a building or wall it sounds sick. There is nothing like it and you dont see it too often, people deffinatly get interested when youre driving by

08 Black CC/SB lariat, billet grill inserts, Toyo 35X12.5R20 open country m/t, Newton lift 2.5" front with 5" blocks
Spartan 275, 5" downpipe back SS w/ 18"x6" tip, AFE Stage 2 PG7
4" custom downpipe being made


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post #10 of 10 Old 03-19-2011, 06:56 PM
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might get this one since im rockin the MBRP cool duals.
07-09 Ford Powerstroke 6.4 Stainless 4" Exhaust Muffler - eBay (item 270527460527 end time Apr-02-11 17:58:41 PDT)

That ones fine right?

5" MBRP Straight Exhaust w/ 6" tip, SCT Monitored, Limo Tints, 20" LED Lightbar, 8k HIDS, & Some other goodies
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