Is there a best cold air intake for a 99 2.5?
- Thread starter joshwellborn
- Start date
The best CAI for a Jeep is the one you don't buy and/or the one you throw in the trash and replace with a properly fitted OEM intake with quality air filter.
Stock air intake is preferred, consensus is an aftermarket CAI will not get you more HP no matter what the seller claims.
And after that, is the issue with the filter attached to the intake, not filtering properly (or at all really...)
There are a lot of options for more HP. They all involve an engine swap or at least a stroker.
X5 to avoiding a CAI, they don't do a thing for performance in our Wranglers. Neither do throttle body spacers.
Best thing you can do is change to a 4.0 air tube https://wranglertjforum.com/attachments/718ead39-dfe7-4bb5-bf49-1d3ffd63e364-jpeg.214299/ The air box flows more than enough air for the 2.5.
Potomus Pete
TJ Enthusiast
I used to be a believer in the CAI, but not any more.
OP
Oh wow! Ok. I didn’t know.
And what about my straight pipe situation? Is it giving me better mileage, or is that also trail legend?
And what about my straight pipe situation? Is it giving me better mileage, or is that also trail legend?
Tray Burge
TJ Addict
Honestly I did it to unclutter the engine compartment. But the 2.5 intake tube is designed to cancel noise and does that by manipulating the airflow so if there is any chance there is restriction the 4.0 airtube eliminates it. Are there any real gains from it? That I can not tell you but it sure is better than wasting money on a CAI and the only downside is the chance of a little extra noise.
yea but it sure makes the cops turn their heads and look ! and after he passes them they just laugh and say it's a 4 cylinder
Sorry that I'm hijacking this thread a bit, but is that why the box over the throttle is so bulky? I know that the tube is designed to eliminate noise, with that extra chamber on the side of the tube, but I also wondered about that box.
It's making a terrible noise that only 16 year old boys will like. Also, it's likely damaging your hearing and the hearing of those nearby.
I'll add gutting or removing a cat will do absolutely nothing for power either....unless yours is plugged. Ive tested that one on more than a few vehicles even bench flow testing them seeing 2-3 times the flow capacity and still Nada in the way of performance gains on the vehicles.