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Old 05-09-2008, 05:18 AM   #1 (permalink)
4X4 AG
Cummins Fan
 
Join Date: Jan 2008
Location: Cypress, Tx.
Posts: 49
Turbo Spool Up - 4" vs. 5"

Ok, so I am torn on what exhaust to put on the truck. At first I was going to go 5" TBE. Thought bigger is better. But I have been told by several people that 5" is over kill since I am not going to heavily mod the truck. Plus, I have also been told by a few people that with the light mods that I am going to have, that there will not be that much back pressure on the turbo. So therefore it will not spool up as fast as it would with the 4".

I am looking for any help that anyone can give me in making this decision.

Also, are these statements that I mentioned above true?

Thanks in advance for the help.
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