Originally Posted by TGA
How is the stock box a true CAI?? An not much gains with it eh? Mabey the money will go towards other upgrades. And My jeeps not all stock. Got performance spark plugs, hypertech tuner, fuel catalyst, next will be borla from cat back, new cat an headers. Still no?
K&N,and other, draw hot air from the engine bay thus they are a "hot air intake system".The OEM box draws air from a mini-snorkel that sits between the grill and hood,thus sucking in colder air.
No such thing as "performance" spark plugs,if you have anything but copper core plugs in your actually hurting performance and mpg's as your ignition system is designed to run copper core plugs.
Fuel catalyst,snake oil.Should try this instead..............
Then you can have so much power(said in sarcastic tone)
Good luck with headers as the only company that made them for the 3.7 stopped making them almost a year ago.Those along with a cat back system may give some top end power but you loose alot of low end power.
The one and true way to see performace gains in a Liberty is by regearing and only regearing unless your willing to drop some big $$$ into custom modifying the engine internals and have the PCM programmed to take advantage of those mods.Expect to drop at least $5000+ in the engine alone.Sorry but HP is not cheap,really not cheap to do right.
The thing is the automakers are not in bed with the oil companies and they must reach a average mpg goal set by the US government so if you really think some of those "mods" actually do anything don't you think they would be stock right from the factory? I mean there having a hard time meeting those average mpg standards right now so any little bit would make it easier for them,just wait till they must meet the new standard in 20 years of 60 some mpg's.