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Old 07-26-2011, 09:51 AM
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5" Turbo back?

I purchased what I believed to be a true 5" turbo back exhaust and it came with a 3.5" down pipe.

My question is will a 5" down pipe fit? Why would this manufacture call it a
5" turbo back if it's not?

I am new to this site and new to digging into this '05 6.0.
Thank you all for your help and comments!
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Old 07-26-2011, 10:02 AM
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i have always found it odd that they call it a 5" turbo back when it is really a 3.5"dp to 5" exhaust, mine on the 6.4 is that same way they all are, and i highly doubt you would ever squeeze a 5" dp in there with out literally cutting out the firewall
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Old 07-27-2011, 09:31 AM
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Thanks for your response. I will install it this weekend.
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Old 07-31-2011, 10:18 AM
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Sorry man, no one can fit a 5" down pipe on our trucks. The 3.5" BARELY fits.
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Old 07-31-2011, 11:17 AM
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I have a true 4" straight pipe. The 4" down pipe is huge. When I was installing it i swear it did not fit but after 2 hours screwing with it I got it. The 3.5 fits much better and supposedly u lose low end power with a bigger down pipe
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Old 08-02-2011, 05:31 AM
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Thank all of you for your response. I took about two hrs and changeed out the exhaust and rotated the tires sunday. I have lost bottem end however, that was expected at this point.
thanks guys!
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