jdrennan88
New member
Hey guys, been searching to no avail for a CARB certified child air intake for my 2003 the 4.7l. If anybody knows of a brand worth while please post. Thanks guys.
Carb certified 4.7L cold air intake
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BlackWorksInc
New member
Well Volant and most of the ones worth a damn ($$$) are not CARB legal.
Also what's wrong with the factory CAI that you want to replace it?
Also what's wrong with the factory CAI that you want to replace it?
jdrennan88
New member
Put larger tires on and lost some get up and had mileage went to hell. Any suggestions to solve that if not a cold air? I'm really hoping to hey some of that back. If I have to I'll kreply the stock and change it back when I have to get smogged. But would changing it back and forth mess up the ecu or efi?
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BlackWorksInc
New member
First off the factory air inlet/airbox IS a Cold Air Intake (it is fed from cold air in the passenger fender.) Second, there's no noticeable power gains from any off-the shelf CAI worth mentioning; it's mostly done for sound more than anything else.
Your mileage is going to suffer with larger tires, these are BoF SUVs, pretty much any modifications will just tick away at the mileage. Depending on how big the tires are, you could re-gear the differentials, but realistically you're probably going to be around the mid to high teens if you're modifying these vehicles. (Hell I'm getting 11mpg these days on average since I barely drive more than 5 miles a day and the truck is barely warmed up by the time I get to work; I get around 14~15mpg with crappy California Ethanol fuel; 16~17mpg running non-Ethanol fuel when I went to Oregon.)
If fuel mileage is that big a concern you unfortunately purchased the wrong vehicle, you might be better off investing in a commuter (and dedicating this as your fun-time vehicle) if that's an option because it's just not realistic to expect good fuel mileage from modifying an SUV for off-road use.
Your mileage is going to suffer with larger tires, these are BoF SUVs, pretty much any modifications will just tick away at the mileage. Depending on how big the tires are, you could re-gear the differentials, but realistically you're probably going to be around the mid to high teens if you're modifying these vehicles. (Hell I'm getting 11mpg these days on average since I barely drive more than 5 miles a day and the truck is barely warmed up by the time I get to work; I get around 14~15mpg with crappy California Ethanol fuel; 16~17mpg running non-Ethanol fuel when I went to Oregon.)
If fuel mileage is that big a concern you unfortunately purchased the wrong vehicle, you might be better off investing in a commuter (and dedicating this as your fun-time vehicle) if that's an option because it's just not realistic to expect good fuel mileage from modifying an SUV for off-road use.
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truckhigh
New member
there isn't a carb legal one because they all don't have a charcoal filter. Your only choice is a drop if you want a washable filter. I don't think you will get any mpg gains.
seafoam your engine and put new plugs. then get the drop in filter and remove charcoal filter then add exhaust. this will give you some more pep for the least amount of money.
seafoam your engine and put new plugs. then get the drop in filter and remove charcoal filter then add exhaust. this will give you some more pep for the least amount of money.
truckhigh
New member
I change mine back every smog. i have the k&n and i like to wash it after i go through sand or dusty back roads. i think its worth it in that aspect. But, if i was looking for more power i think removing the charcoal filter and better drop in air filter will be a lot less hassle for the same result.
