I have a 2003 Ram 1500 with the 5.7 HEMI. I'm looking at replacing the existing stock air filter with either a K&N or Sceptre Air Intake Kit. Obviously there is a large price difference between the two (about $130). I have one mechanic telling me that they are essentially the same thing and go for the Spectre. I have another mechanic telling me to stay away from Spectre as it can fall apart and do significant engine damage. I'm also finding mixed reviews during basic google searches. Anyone have any input?

 

CAI is basically just a way to lighten your wallet. The stock system draw air from pretty much the same place as the CAI systems..... the most benefit comes from the free-flowing filter.

 

CAI only gives you looks and sound (and, as mentioned, a lighter wallet). So, if you insist, go with the one that you think looks best......

 

Thank you both for the replies.. HeyYou when you mention the free flowing filter, could i essentially just add a free flowing filter to the stock set-up and obtain the same effect. I could care less about looks or sound, I'm simply trying to improve fuel efficiency.

 

You can but the gain is negligible compared to the cost.

 

This. You won't get any more power out of it, or any better gas mileage. Might be a bit louder..... Maybe.

Spend your money elsewhere. Headers actually will give you a boost you might be able to feel.

 

My 03 Ram came with a K&N cold air set up and when I was pulling a heavy load with it, the sound inside the cab was almost deafening. Lightly loaded it sounded fine but not while pulling I immediately went to an auto recycler and picked up the stock parts and it is great while under load now. One thing I found out while researching the air intake system online is that the resonator( part that connects directly to the throttle body) is actually an integral part of keeping the noise in the cab down. As it is actually engineered to match the same frequency of the noise the engine produces therefore making the cab a quieter ride. It still pull very well with the stock set up didn't notice much if any loss of power.