This may be a dumb question but I was just curious about the cheaper CAI's on ebay for like $75. Are these any good or are they poop? Could they harm my 4.6 at all, as opposed to getting a nicer system like K&N? Below is the link for one......


http://www.ebay.com/itm/BLUE-FORD-F1...b146ca&vxp=mtr

 

i reaal couldnt see how they would harm anything and the only major difference would be the quality of filter and the ebay ones just have a straight intake tube and a 90 degree elbow and the k&n has a highflow tube but other than that shouldnt anything very different. i have a k&n 77 seriees its nice but 300 bucks lol

 

whats the difference between a straight intake tube and a highflow tube?

 

I <3 my K&N

 

Save your money and just do the GOTTS MOD. Unless all your after is underhood bling

 

I put one on my truck recently and am not that impressed. I put the 57 series I think. The black tube.

 

If you like unknown a/f ratios and lower filtration, sure get the CAI. Even a K&N system will give you the lower filtration aspect. Gotts mod or a good dry filter system are much better options.

 

Where's the facts on your claims? Just curious

 

I do know that CAI with open top boxes wont do as good of a job as a enclosed box becuase the engine heat can get sucked into the intake...thats why OEM intakes have a enclosed box that has a tube going into the fender.

some race classes use gold flake to help reduce intake temps b/c rules are they have to use factory intakes.

 

Check out the ISO 5011 tests for most any oiled air filter. I'll just use S&B's data for their filters as an example. Even they concede that their oiled filters don't do as good of job filtering as the stock paper or their dry filter. As far as the a/f ratios go, whenever the MAF environment is changed there is a chance a/f will be skewed. This mainly affects the slot style MAF in the newer trucks, but even the 2v motors can run lean due to MAF placement.
I worked in an SAE testing site for years, so it's not a problem for me backing my claims I'm use to it.