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Best exhaust for 5.4L

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Old 04-28-2009, 12:24 PM
sawdust57 sawdust57 is offline
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Best exhaust for 5.4L

Some opinions, if you please.

I'd like to research a new exhaust system for my 2002 F-250 5.4L. Is there a combination out there that offers a little more torque and gas mileage without being too loud? I'm interested in a nice rumble, not an ear-splitting explosion. Thanks!
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Old 04-28-2009, 01:45 PM
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Good question I would like to know too.
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Old 04-28-2009, 04:04 PM
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I have the Flowmaster Super 44 with 3" pipe and 4.5" stainless steel tip exiting in stock location.

The truck seems to like it, and it's got a nice rumble with out that raspy loud glasspack sound. I tried several setups and like this one the best.
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Old 04-28-2009, 04:07 PM
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flowmaster and jba get my vote. i have used both and they have great sound with minimal cab noise. don't go gibson. the cab noise will give you a headache.
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Old 04-28-2009, 05:45 PM
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If you're just going 'cat back' make sure that you remove the two restrictions near the y-pipe. A guy on ebay sells a nice piece that will fit right up. If you're going complete exhaust from the manifolds...you've already got it covered.

Search Ford Y pipe on ebay
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Old 04-28-2009, 07:37 PM
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I love my Magnaflow. A nice low rumble down low that almost disappears in the high RPM's, and little to no interior noise. Sadly, I may be ditching it for something louder. I want my truck to have some real bark to it. I know it just ain't possible, but I want her to sound something similar to a Cobra with SLP Loudmouth exhaust.
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Old 04-28-2009, 07:47 PM
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Originally Posted by enduro4231 View Post
I love my Magnaflow. A nice low rumble down low that almost disappears in the high RPM's, and little to no interior noise. Sadly, I may be ditching it for something louder. I want my truck to have some real bark to it. I know it just ain't possible, but I want her to sound something similar to a Cobra with SLP Loudmouth exhaust.
What size Magnaflow muffler are you running? My neighbor across the street has a late model F150 with 5.4L engine. He installed a 11" or 12" Magnaflow muffler only and his truck is loud and sound's great! I love the sound of Magnaflow!
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Old 04-28-2009, 07:55 PM
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It's a 3" SI/SO and I believe it's an 11". Great sound, but not as loud as I'd like it to be. Maybe it's due to my uber restrictive stock Y-Pipe or cat, but I'm not sure.
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Old 04-28-2009, 08:00 PM
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Quote:
Originally Posted by bryyce62 View Post
If you're just going 'cat back' make sure that you remove the two restrictions near the y-pipe. A guy on ebay sells a nice piece that will fit right up. If you're going complete exhaust from the manifolds...you've already got it covered.

Search Ford Y pipe on ebay
Good point, I didn't pay attention to the year model of the OPs truck. That factory Y-pipe is junk. Just me mindfull of the basic physics of exhaust, scavenging is key. I still would like to see someone try... Zoomers Exhaust Works - Performance Exhaust Systems, Exhaust Tips, and Cat-backs
In theory, these should be outstanding.
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Old 04-28-2009, 08:09 PM
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Quote:
Originally Posted by WeWonIt View Post
Good point, I didn't pay attention to the year model of the OPs truck. That factory Y-pipe is junk. Just me mindfull of the basic physics of exhaust, scavenging is key. I still would like to see someone try... Zoomers Exhaust Works - Performance Exhaust Systems, Exhaust Tips, and Cat-backs
In theory, these should be outstanding.
That Zoomers muffler looks like you can take it apart to access the core.
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Old 04-28-2009, 08:13 PM
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Quote:
Originally Posted by enduro4231 View Post
It's a 3" SI/SO and I believe it's an 11". Great sound, but not as loud as I'd like it to be. Maybe it's due to my uber restrictive stock Y-Pipe or cat, but I'm not sure.
My neighbor's exhaust dumps in front of the right rear tire. His is a SI/DO muffler. Maybe that makes a significant difference. He said that was the only thing that he installed (no cat removal or headers).
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Old 04-28-2009, 08:17 PM
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Here is the aftermarket y-pipe on eBay:

eBay Motors: 00-04 Ford F250-F350 6.8L V10 Performance Y Pipe (item 220404487173 end time May-07-09 14:53:00 PDT)


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Old 04-28-2009, 08:21 PM
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Originally Posted by Furian View Post
My neighbor's exhaust dumps in front of the right rear tire. His is a SI/DO muffler. Maybe that makes a significant difference. He said that was the only thing that he installed (no cat removal or headers).
I believe you are correct. Magnaflow makes a complete SI/DO 3" kit for the F150 with dual tips exiting in front of the passenger's rear tire like you stated. A kid at my school has it on his OBS F250 w/ 5.8L (I think), and it sounds alot louder than my system.


On the topic of Y-Pipes, I thought I saw one somewhere that was a complete bolt-in, all the way up to the flanges that bolt to the manifolds.
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Old 04-28-2009, 08:24 PM
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Maybe not. I couldn't find it on fleabay or anywhere else for that matter. I have a hard time believing the claimed +33HP that the SDP Y-pipe adds.
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Old 04-28-2009, 08:33 PM
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Originally Posted by enduro4231 View Post
Maybe not. I couldn't find it on fleabay or anywhere else for that matter. I have a hard time believing the claimed +33HP that the SDP Y-pipe adds.
Yeah, that may be overstated...
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