Summit 4" or 5" for exhaust - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 12 Old 03-01-2009, 02:45 PM Thread Starter
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Summit 4" or 5" for exhaust

Has any one used the summit racing exhaust on there 6.0? I was looking into doing an exhaust on my 2005 dually any I do not want it very loud, but I do want a turbo back, for possible upgrades in the future don't know if I should do a 4" or 5"?

here is the links:
5" SummitŪ Aluminized Diesel Exhaust Systems: SUM-680012 - summitracing.com

4" SummitŪ Aluminized Diesel Exhaust Systems: SUM-680011 - summitracing.com

2005 F350 Lariat 2WD 6.0 PSD mods to come!

Last edited by zombiescustoms; 03-01-2009 at 03:04 PM.
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post #2 of 12 Old 03-01-2009, 02:51 PM
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Originally Posted by zombiescustoms View Post
Has any one used the summit racing exhaust on there 6.0? I was looking into doing an exhaust on my 2005 dually any I do not want it very loud, but I do want a turbo back, for possible upgrades in the future don't know if I should do a 4" or 5"?

here is the link: SummitŪ Aluminized Diesel Exhaust Systems: SUM-680012 - summitracing.com
dont like that muffler design lol... if you had to keep a muffler on the truck i woudl do a straight through design to get less restriction...

if your looking for a AL kit straight piped let me know... i can get you a better deal than what your getting through summit

-Raul
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post #3 of 12 Old 03-01-2009, 02:57 PM Thread Starter
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I definitely think I want to run a muffler just because of noise, what would you recommend?

2005 F350 Lariat 2WD 6.0 PSD mods to come!
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post #4 of 12 Old 03-01-2009, 03:04 PM
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Summit racing you can do a 4" turbo back for i think $299....can't beat that..and its the same freakin thing as MBRP or anything else..as far as a 5" they dont make it. But im telling you Summit its the same muffler and same tubing as the "big name" brands..its like buying Walmart ice cream..same as the $5.00 a gallon but much cheaper!
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post #5 of 12 Old 03-01-2009, 03:08 PM
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post #6 of 12 Old 03-01-2009, 03:15 PM Thread Starter
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The summit 4" is $291 delivered to my door
and the 5" is $386 to my door I have not found any thing cheaper

Your 4" "budget kit" is $315 plus shipping not seeing how that is cheaper

2005 F350 Lariat 2WD 6.0 PSD mods to come!
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post #7 of 12 Old 03-01-2009, 03:19 PM
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Originally Posted by zombiescustoms View Post
The summit 4" is $291 delivered to my door
and the 5" is $386 to my door I have not found any thing cheaper

Your 4" "budget kit" is $315 plus shipping not seeing how that is cheaper
well i didnt see that it was a shipped price.... my kit also comes with the cat delete pipe just for reference a MBRP cat delete pipe is $66 bucks for the AL pipe...

-Raul
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post #8 of 12 Old 03-01-2009, 04:03 PM Thread Starter
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Still need to know which is better the 4" or 5" , the only other thing besides the exhaust I may add a SCT tuner but nothing crazy, this still has its stock head bolts and gaskets, and I don't want any issues.

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post #9 of 12 Old 03-01-2009, 04:07 PM
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Zombie,

there is no difference in performance between the two. It all comes down to the sound and tone of the exhaust note. The 5" will be more of a low end growl/rumble and will over all be louder than the 4". That's the only difference. Judging by you saying you want a softer exhaust note, I would stick with the 4".

Performance: SCT Xcal-Innovative Diesel, 4" Turbo Back Exhaust no muffler and kitty missing, Spearco IC, ID Power Elbow, AFe Stg. II Intake, 03 Turbo.
Exhaust Clip:http://www.youtube.com/watch?v=mYF9HgB0RwY

Looks: Westin Black Powder Coated Bull Bar, Recon Smoked Cab, Mirror Lights, and 3rd Brake Light, 4" Superlift kit, 35" ProComp Extreme A/T's, 18x10 Diamo Black & Chrome Rims.
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post #10 of 12 Old 03-01-2009, 04:08 PM
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you dont neeed 5" just stick with 4"..if you start making alot of power way over 500hp than turn to 5", but ive heard of poeple with over 500 hp still using 4".

2003 FORD F350
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