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12-23-2011, 06:25 PM
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what are the pros and cons of a 5 inch exhaust?
I currently have the factory diameter exhaust straight piped from that 3 bolt flange back I was wondering if it would be beneficial to have a 5 in from the turbo back. I need feedback please. Thanks
Bryan 
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12-26-2011, 09:50 PM
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not much of a con
Not really much of a con here, I think the only con will be the price diffrence between 4 and 5 and what type of steel you go with. 5 inch is gonna help your truck breath that much better. I have a 4 inch straight pipe from the turbo back with a free flow muffler from MBRP. its money! remember you can never go wrong if you follow this simple diesel rule... BIG AIR IN (ie cold air intake), BIG EXHAUST OUT and your diesel will love you for it!
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 08 6.7L engine NOT STOCK, 6 speed auto, 2 inch leveling kit with 285/70/17 Toyo Open Country AT, 3.73 rear end, SLT package, 22MPG@70MPH  , RBP fuel additive.
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