C.A.I. Horsepower Gains

[IT-PRO]

Sorry if I missed some of the good stuff, but was there ever a definite solution for the CIA, Tune? If so were there actual documented results?

 

[84FordMan]

On the 4.6, yes. Tuned two 4.6s back to back, one with a 3.5" CAI, the other with a 4" CAI, both nearly identical design, just the diameter difference. Once tuned, the 4" gapped the 3.5" by 12 WHP. The 3.5" diameter tubing was larger than the stock accordion tubing, as well as smoother transitions and no resonator chambers hanging off it either, but still shows it was not nearly large enough for what the 4.6 Tau actually needs.

It is safe to assume the even larger 5.0 Tau is just as thirsty for air as the 4.6.

 

[yeggenny]

I did a custom mod and added an K&N filter to my 2011 3.8 Sedan. For 6 months i kept track of my fuel consumption going to and from work. Since adding the filter, Im averaging almost 1L/100 km better fuel mileage. Sorry dont know what that is in gallons, but for me that about $5 per gas tank in better fuel mileage.

 

[jmac]

It looks similar to the 5.0?? Check under the filter. If there is door-flap, remove it & get a K&N filter. It works great on the 5.0..

 

[Parasurfer1979]

Is there any tonal change? I'm wanting the extra MPG's but with little to no change in the sound. Not looking to have my Genesis sound like a Z28/Mustang. Is anyone willing to take a photo of this FLAP?

 

[Rey]

No need to photo the flap, just look for yourself. Take off the air filter lid and the filter element. Look downward.
Removal of the flap will not materially increase intake noise, except at very high rpm and full throttle. The OEM intake system is designed to reduce intake noise to zero. Any and all mods to the intake tract will necessarily increase intake noise, BUT this is experienced only at heavy throttle. Under normal light throttle cruise there is no increase noticeable in intake noise.

 

[Flarfignewton]

I didn't notice much of a difference when I removed the flap in mine or even after I removed the second air filter in the lid. Only after I plugged the two bolt-on resonators in the intake tube did I hear an appreciable difference. Only cost about $2 to boot.