Dallas Fort Worth 5.0 Mustang Club - View Single Post - What should I do? K&N CAI vs. Stock Box & Others

**DirtyD** · 08-08-2013, 09:41 AM

First, I don't want this to turn into the classic debate thread about whether or not a CAI is worth it. Please don't post smart responses about it if that's all you are going to contribute.

Some backstory:
I purchased a K&N 63 series intake back in January. I had a K&N intake on my old F150 that seemed to be a decent pickup over the stock intake on the V6 it had. I figured that since K&N tends to do their homework, this CAI should be a decent upgrade over the stock box (yes I konw the stock box is a great design too).

With that being said, I installed the intake and have been enjoying it. I picked up a tune from the guys over at JPC Racing while using this intake, and the tune definitely helped. However I was a little niave about the intake until the other day. I noticed that at the area around the MAF necks down from the rest of the tube diameter as shown in the picture below. This really disappointed me, as I now understood why this was a "tune free" CAI.

Last night I Oxford14Stang (Jay/Jalal), who basically has the same mods (2013, 3.55s, Magnaflow Competition ABs, Steeda 101mm CAI, Bama tune, 235/50/18 stock wheels) as my car (2013, 3.55s, K&N CAI, GT500 ABs, JPC tune, 255/40/19 & 275/40/19 Brembos). He took almost every race by about 1/2-3/4 of a car over me, and was shift a little sooner than I was.

I have complete confidence in my JPC tune over the Bama tune, so it came down to the intake basically. I have the feeling that the fact this is a "tune free" CAI is really hurting the potential of the car, even though it has been tuned for this intake. I can now see why not many people are running it.

So...with all of that now said, I want to ask opinions, from my fellow '11-'14 owners, as well as any of the tuning gurus here, what your opinions are on where to proceed from here.

I have contemplated going back to the stock box, either temporarily, or permanently (until I go PD blower in the future). I am also thinking of getting a better, "tune required" CAI such as Steeda, JLT, etc. I know those CAIs perform. However, I have reserves about the open air filters in these cars:

1) We know about this Texas summer heat...
2) combine that with an open element filter under the closed hood of a engine running around 180°-200° WITHOUT the aid of the ambient air temp of 100°+, IATs are a nightmare in slow moving traffic.
3) I trimmed my hood carpet around the vents, and don't want to worry about problems with water leaking onto the filter through the hood vents.

I wouldn't mind getting an open element CAI as long as I could gaurantee the filter is completely, or almost completely, sealed from the heat of the engine bay, still utilizes the ram air inlet from the grill, and I can find a way to prevent possible water damage...

What do you guys think I should do as far as where to go from here?

08-08-2013, 09:41 AM	#1
DirtyD Senior Member Join Date: Jun 2012 Posts: 5,594	What should I do? K&N CAI vs. Stock Box & Others First, I don't want this to turn into the classic debate thread about whether or not a CAI is worth it. Please don't post smart responses about it if that's all you are going to contribute. Some backstory: I purchased a K&N 63 series intake back in January. I had a K&N intake on my old F150 that seemed to be a decent pickup over the stock intake on the V6 it had. I figured that since K&N tends to do their homework, this CAI should be a decent upgrade over the stock box (yes I konw the stock box is a great design too). With that being said, I installed the intake and have been enjoying it. I picked up a tune from the guys over at JPC Racing while using this intake, and the tune definitely helped. However I was a little niave about the intake until the other day. I noticed that at the area around the MAF necks down from the rest of the tube diameter as shown in the picture below. This really disappointed me, as I now understood why this was a "tune free" CAI. Last night I Oxford14Stang (Jay/Jalal), who basically has the same mods (2013, 3.55s, Magnaflow Competition ABs, Steeda 101mm CAI, Bama tune, 235/50/18 stock wheels) as my car (2013, 3.55s, K&N CAI, GT500 ABs, JPC tune, 255/40/19 & 275/40/19 Brembos). He took almost every race by about 1/2-3/4 of a car over me, and was shift a little sooner than I was. I have complete confidence in my JPC tune over the Bama tune, so it came down to the intake basically. I have the feeling that the fact this is a "tune free" CAI is really hurting the potential of the car, even though it has been tuned for this intake. I can now see why not many people are running it. So...with all of that now said, I want to ask opinions, from my fellow '11-'14 owners, as well as any of the tuning gurus here, what your opinions are on where to proceed from here. I have contemplated going back to the stock box, either temporarily, or permanently (until I go PD blower in the future). I am also thinking of getting a better, "tune required" CAI such as Steeda, JLT, etc. I know those CAIs perform. However, I have reserves about the open air filters in these cars: 1) We know about this Texas summer heat... 2) combine that with an open element filter under the closed hood of a engine running around 180°-200° WITHOUT the aid of the ambient air temp of 100°+, IATs are a nightmare in slow moving traffic. 3) I trimmed my hood carpet around the vents, and don't want to worry about problems with water leaking onto the filter through the hood vents. I wouldn't mind getting an open element CAI as long as I could gaurantee the filter is completely, or almost completely, sealed from the heat of the engine bay, still utilizes the ram air inlet from the grill, and I can find a way to prevent possible water damage... What do you guys think I should do as far as where to go from here? Last edited by DirtyD; 08-08-2013 at 10:23 AM.