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  #1  
Old 04-30-2012, 11:01 AM
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Good exhaust setup for a 5.4L?

Hey guys. I have a 03 f150 supercrew 5.4L and I'm wondering what's the best exhaust setup. Right now I have stock exhaust with cherry bomb extreme muffler and 3" tips. They have been on since the truck was purchased by grandpa right off the lot in 03. The tips are rusted on the bottom and everything, and the donut gaskets on the manifolds are worn out and making a ticking noise. So I figured it's time to upgrade the exhaust completely. I'm gonna go with bbk shorty headers, 2.5" piping, two magnaflow high flow cats #94106, true duals, two flowmaster 40 delta flows 2.5" single in/single out, and 3" by 18" tips. Will I gain any mpgs and hp at all? And will it have a good sound to it?
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  #2  
Old 04-30-2012, 11:23 AM
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Sounds good.....but if you're going to do that much work you might want to forget the shorties and install obx long tube headers.....
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Old 04-30-2012, 11:44 AM
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... And you need an x-pipe

and lose the pos fartmasters....

and go 2.25" pipe

...or, forget any torque preservation.

btw - no mpg gains, sorry
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  #4  
Old 04-30-2012, 05:38 PM
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Originally Posted by 88racing View Post
Sounds good.....but if you're going to do that much work you might want to forget the shorties and install obx long tube headers.....
I actually thought about the obx lt's. I hear they have a great exhaust flow and sound. Just don't know much about them. I will look into them more. Thanks.
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  #5  
Old 04-30-2012, 05:42 PM
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Originally Posted by MGDfan View Post
... And you need an x-pipe

and lose the pos fartmasters....

and go 2.25" pipe

...or, forget any torque preservation.

btw - no mpg gains, sorry

I should go 2.25" piping? Isn't that stock piping size? Also, which muffler do you recommend?
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  #6  
Old 04-30-2012, 05:44 PM
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Quote:
Originally Posted by 88racing View Post
Sounds good.....but if you're going to do that much work you might want to forget the shorties and install obx long tube headers.....
Also, you have a link that I can look at those obx lt's? When I search them, only blogs and forums show up. I need a link on a place to buy them at.
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  #7  
Old 04-30-2012, 05:56 PM
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Originally Posted by DerrickT113 View Post
Also, you have a link that I can look at those obx lt's? When I search them, only blogs and forums show up. I need a link on a place to buy them at.
http://www.sparktecmotorsports.com/h10792s.html
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Last edited by 88racing; 04-30-2012 at 06:16 PM.
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  #8  
Old 04-30-2012, 06:45 PM
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Originally Posted by DerrickT113 View Post
I should go 2.25" piping? Isn't that stock piping size? Also, which muffler do you recommend?
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  #9  
Old 04-30-2012, 07:16 PM
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2.5" is stock yes, but in a single system not dual. For the best low end torque, go with dual 2.25. For best sound, go with 2.5"

Flowmaster is out. Especially if your wanting increase in anything. Stick with a straight threw design muffler.
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F150 Exhaust Borla true dual X pipe
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  #10  
Old 04-30-2012, 08:36 PM
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Magnaflow has good straight through mufflers, borla, banks power, cherry bomb glasspacks, and many more. Borla xr-1 are my favorite, but it will cost you.
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  #11  
Old 04-30-2012, 10:15 PM
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Okay thanks. I heard about that I should stick with a straight through design muffler. I'm probably gonna get the magnaflow magnapacks. Also, should I run straight duals, or duals with an x pipe?
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  #12  
Old 04-30-2012, 10:28 PM
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With X pipe. ^
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2006 F250 Lariat FX4 6.0 PSD
Performance: EGR delete, SCT tuned, 3.5" straight pipe
Other mods: Nathan Airchime K5HA locomotive horns

Videos:
Nathan Airchime K5HA - short burst
Nathan Airchime K5HA - time delay
F150 Exhaust Borla true dual X pipe
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  #13  
Old 05-02-2012, 09:20 AM
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X-pipe. But make sure you get the magnaflow tru-x, x-pipe. Ive heard with anything else, you will get drone.
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Old 05-02-2012, 09:20 AM


 
 
 
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