Diesel owners
Posting Guru
Joined: Nov 2013
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From: Rothesay, New Brunswick
Not necessary unless you are making crazy HP on a 6.0. The paper 6.0 filter is great and many maintain that it is much better than a CAI at keeping dust out and keeping your turbo from an early death.
Super Moderator
Joined: May 2004
Posts: 29,380
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From: Central Coast of CA
On the 7.3's, the aftermarket filter intake setups can allow for better control of EGT's when custom tuned. However, a good custom tuner can make sure that's not a problem too, whether you have a stock filter system or an aftermarket one.
Stewart
Stewart
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Joined: May 2014
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From: Dustbowl, NV
That's been the consensus of my buddies w/ 6.0s also.
Logistics Pro
Joined: Jan 2014
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I've been running a standard 6637 intake setup in Houston for years, and haven't felt the need to swap to a CAI. I'm slightly over stock HP numbers 
I cannot attest to stock vs 6637 when tuned as I did several modifications at once, so I don't have any baseline intake vs intake results.
Something else that can help substantially, albeit more expensive, is a 6.0 intercooler swap.
I cannot attest to stock vs 6637 when tuned as I did several modifications at once, so I don't have any baseline intake vs intake results.
Something else that can help substantially, albeit more expensive, is a 6.0 intercooler swap.
Laughing Gas
Joined: Mar 2004
Posts: 751
Likes: 11
From: May Township, MN
After putting in stage 2 injectors and a hydra it blew a lot of black smoke and triggered the air filter light every day. Put in a S&B which greatly reduced the black smoke and no more idiot light, plus the intake sounds good.
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Laughing Gas
Joined: Nov 2014
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Sounds like get tuner and don't worry about the air filter too much----hwy you must be related--I go for cool too--after other things are addressed
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From: Ft. Lauderdale, FL
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Laughing Gas
Joined: Nov 2014
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So if you don't tow--the factory inter cooler is fine??
Still learning diesel stuff--so emissions gases are routed back into the engine to be burnt again...which makes the engine run hotter and sounds like it is the potential source for other nagging problems. What is the EGR Delete? Are there different work arounds for this issue. I live in MT and the cows make so many gas fumes, no one notices diesel...plus there are less people than in than NYC!
Still learning diesel stuff--so emissions gases are routed back into the engine to be burnt again...which makes the engine run hotter and sounds like it is the potential source for other nagging problems. What is the EGR Delete? Are there different work arounds for this issue. I live in MT and the cows make so many gas fumes, no one notices diesel...plus there are less people than in than NYC!
Logistics Pro
Joined: Jan 2014
Posts: 3,595
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Upgrades never hurt, everything helps in its own way, towing or not. Intercooler tends to be overall more beneficial, and for the price you can snag a good unit like CSR for the same price as a CAI. CAI benefits tend to be nerfed by the IC anyway, so my preference would be to upgrade the IC.
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Joined: May 2004
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From: Central Coast of CA
Pretty much when it comes to intercoolers, yeah. But which diesel are you asking your questions about?
7.3's don't have EGR's, only 6.0L Excursions where the PSD is concerned.
That said, the EGR delete is exactly as it sounds, it deletes the EGR. If you're wanting detailed specifics, might I suggest looking into the tech folder over in the 6.0L forum.
Stewart
What is the EGR Delete?
That said, the EGR delete is exactly as it sounds, it deletes the EGR. If you're wanting detailed specifics, might I suggest looking into the tech folder over in the 6.0L forum.
Stewart