Factory duals Y'ed into a single 3"
#1
Factory duals Y'ed into a single 3"
Entire www search isnt coming up with anything conclusive.
Is there any performance loss in switching to this setup on my 03 2500HD 6.0?
What it has now: OE manifolds, OE cats, OE dual 2.75" (??) piping, into a dual in/single out 22" Magnaflow.
What I want to do: Pacesetter LTs, Pacesetter ORY(3"), to 3" single piping all the way back to 30" long 3" single in/out Magnaflow (diesel round style)
The OE duals seem ideal for the 8.1, but seem like overkill for the 6.0.
The truck has a blackbear tune now and will be retuned after the install.....pending I go through with this.
Is there any performance loss in switching to this setup on my 03 2500HD 6.0?
What it has now: OE manifolds, OE cats, OE dual 2.75" (??) piping, into a dual in/single out 22" Magnaflow.
What I want to do: Pacesetter LTs, Pacesetter ORY(3"), to 3" single piping all the way back to 30" long 3" single in/out Magnaflow (diesel round style)
The OE duals seem ideal for the 8.1, but seem like overkill for the 6.0.
The truck has a blackbear tune now and will be retuned after the install.....pending I go through with this.
#2
go for it, from everything ive heard and seen a single 3" exhaust is plenty for trucks even with higher hp and mods. i ditched the factory duals on my 04 sss and went with a single 3.5" exhaust after the y-pipe and i love it. LPP longtubes, magnaflow high flow cats and a 22" si/so magnaflow muffler. best sounding and performing exhaust ive had on the truck since ive owned it.
Zach
Zach
#4
go for it, from everything ive heard and seen a single 3" exhaust is plenty for trucks even with higher hp and mods. i ditched the factory duals on my 04 sss and went with a single 3.5" exhaust after the y-pipe and i love it. LPP longtubes, magnaflow high flow cats and a 22" si/so magnaflow muffler. best sounding and performing exhaust ive had on the truck since ive owned it.
Zach
Zach
Phil
Last edited by Fill; 07-29-2010 at 08:03 AM. Reason: typo
#5
i purchased a flowmaster dual 3" to single 3.5" merge collector for after my mid pipes then constructed the rest of the 3.5" exhaust out of 4-5 45* mandrel bends. it all fits very nicely. i can take pictures if youd like
#6
That would be awesome man.... if you could that would be much appreciated. I am a weekend warrior garage mechanic and try and do everything myself, so I am trying to wrap my head around this before I pull the trigger.
my email address is 2 posts up.
#7
I used a duramax 3.5 inch system and made it fit my std cab short bed truck. later on i swapped out the stock quiet muffler for a str8 thru magnaflow 4 in and out muffler. now it has some tone.
I will probably sell the system locally when i get back to the states. For my new set up
I will probably sell the system locally when i get back to the states. For my new set up
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#9
i have a bunch of different mufflers ive tried on a 8.1L if you havent bought anything they are listed in the for sale section...
The way our 6.0L feel im guess that going with larger exhaust will hurt you a tad on low end power, but with the cam a stock truck has it will make more power in the upper rpms..
The way our 6.0L feel im guess that going with larger exhaust will hurt you a tad on low end power, but with the cam a stock truck has it will make more power in the upper rpms..