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Which first...intake or exhaust?

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Old Jun 2, 2010 | 04:48 PM
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Which first...intake or exhaust?
I recently won a $500 gift card from 4 Wheel Parts and have been thinking about what to spend the money on before it expires in three months. My thoughts are on either a new intake system or a cat back exhaust in search of increased performance and hopefully increased mileage. What do you guys suggest as a first mod for my otherwise stock 2004 6.0? I'll eventually do both and will probably end the mods there without chipping it as I hear way to many horror stories on higher horsepower mods. I'm also in CA and with upcoming smog tests being required I want to keep it legal too. Driving wise it's my daily driver but I also tow my 16000 pound fifth wheel regularly too. Suggestions?
 
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Old Jun 2, 2010 | 04:50 PM
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Exhaust! The only real advantage to a CAI is it probably has a reusable filter. THe stock intake supplies plenty of air for even a tuned truck.
 
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Old Jun 2, 2010 | 04:55 PM
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Stay away from CAI's. A total waste of money except for the possible bling factor and if you still have a warranty, it could be voided.
 
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Old Jun 2, 2010 | 05:11 PM
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Like everyone else said. Leave the intake stock. It does very well if not better than the aftermarket. Go for it on the exhaust.
 
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Old Jun 2, 2010 | 05:13 PM
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Lucky dog!

Exhaust only
 
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Old Jun 2, 2010 | 05:13 PM
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Thanks for the quick info guys. What exhaust is everyone running / recommending these days? I was thinking MBRP.
 
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Old Jun 2, 2010 | 05:14 PM
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MBRP is a great choice.
 
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Old Jun 2, 2010 | 05:22 PM
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Air compressor, tank, and train horns. You won't gain much if any mpgs with just exhaust and you'll only hurt your truck with a CAI. Custom tuning and exhaust will get ya a few more mpgs but not much. Right foot control is the best solution.
 
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Old Jun 2, 2010 | 05:30 PM
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I really like my MBRP. I'd buy it again if I had to
 
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Old Jun 2, 2010 | 05:34 PM
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Originally Posted by SHAWN056.0
Air compressor, tank, and train horns. You won't gain much if any mpgs with just exhaust and you'll only hurt your truck with a CAI. Custom tuning and exhaust will get ya a few more mpgs but not much. Right foot control is the best solution.
I have considered this set up as well. I might even a gain some MPG if I use it accordingly to keep people out of my way so I don't have to constantly lift my right foot, apply brakes and then stomp the right foot.
 
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Old Jun 2, 2010 | 06:51 PM
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And here I thought I was going to get on my soap box about CAIs for the second time today. I must be getting too old and slow nowadays.
 
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Old Jun 2, 2010 | 07:15 PM
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Originally Posted by Mr. Sandman
I have considered this set up as well. I might even a gain some MPG if I use it accordingly to keep people out of my way so I don't have to constantly lift my right foot, apply brakes and then stomp the right foot.
There's many of times I wish I had some in situations like those. That's what I'd get with the gift card but to each his own. Exhaust is nice too and sounds great. Nothing like the whistle of the turbo but it just doesn't help mpg. Good luck on ur choice and let us know what you go with.

Thanks

Shawn.
 
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Old Jun 2, 2010 | 08:51 PM
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Turbo Back MBRP
 
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Old Jun 2, 2010 | 08:57 PM
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Another vote for exhaust. Don't waste your money in the CAI. If you got some bucks left over....coolant filter and/or Fomoto valve.
 
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Old Jun 2, 2010 | 09:01 PM
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Originally Posted by conger
Another vote for exhaust. Don't waste your money in the CAI. If you got some bucks left over....coolant filter and/or Fomoto valve.
Okay, I had a brainfart, what is a Fumoto valve again? And what does it accomplish?
 
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