Ford Mustang Forum banner

1 - 10 of 10 Posts

·
Registered
Joined
·
235 Posts
Discussion Starter #1
I just swapped out my no tune required Airaid cold air intake system with a tune required JLT cold air intake. Just thought I would post my finding of what is the difference between the two. The only difference is the end of the plastic tube that the cone filter connects is 4 1/2 inches wide on the JLT and just shy of 4 inches on the Airaid. The other end of the tube that connects to the throttle body was exactly the same size.

I re-tuned my car and there was a noticeable difference in the loudness and growl of my FRPP touring cat back exhaust. Also the car was more responsive and torque feel was felt immediately.
 

·
Registered
Joined
·
2 Posts
Hey there. Just curious what led you to make the decision to switch over from the Airaid to the JLT? Did you purchase the JLT with a tune, if so what tune?
 

·
Registered
Joined
·
29 Posts
Interesting. A slightly conical shape is common in stock intake tubes. Maybe the JLT has a bit more volume with the bigger inlet? It must be moving more air to require a tune. I still may opt for the Airaid since I don't plan on tuning for a long time, and with these Texas temps in the 90s all the time I love the sealed box, so I am not pulling engine heat.
 

·
Registered
Joined
·
29 Posts
The Airaid CAI adds only 5 hp, per their own representative. At that, if it is a peak gain or an average gain across a given rpm band, who knows? I will probably never know because any dyno I've seen with a CAI on the '15 GT is with the car tuned.

http://youtu.be/eA7uCiVwcpo

So if you hear claims of more than that, be wary unless a tune or some other significant mod is involved.
 

·
Registered
Joined
·
3,538 Posts
It must be moving more air to require a tune.
It's not a matter of which intake allows more air that requires the tune.

The change in diameter of the MAF housing is what requires a tune. The MAF transfer function must be calibrated for any intake that doesn't use a OEM sized MAF housing.
 

·
Registered
Joined
·
209 Posts
Will cold air and tune mess with the setting on the performance package 15, (sport, or track setting)
I can't say for sure, because I have an S197, but the S550 computer should be recalibrated for all the various drive mode settings by changing the calibration via the tune. Your best bet is to get in touch with an individual tuner (Bama, Brenspeed, etc) and ask them how they're handling the different driving modes.

JR
 

·
Registered
Joined
·
54 Posts
There is not a lot of info on what exactly the different modes actually change. Any help would be greatly appreciated.

I contacted Bama Performance about this and Rob a Bama Support Specialist said "The tune will work as intended in the normal diving mode. In the other driving modes, Fords Programming for throttle sensitivity, shifting and drivers assists will override those setting on our tune."
 

·
Registered
Joined
·
23 Posts
Thank you for responding. Not sure what to do at this point about CA and tune now if the factory with over ride in certain situations. Do you know if your tune has an option to take off traction control or if that influences throttle sensitivity. Sorry for so many questions there is just not a a lot out there on exactly what the different setting actually do. I had to sign a sheet when I bought it about acknowledging warranty might not be covered in Track mode if you track the vehicle and a mechanical issue occurs.
 
1 - 10 of 10 Posts
Top