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Thread: removing airbox top Reply to Thread
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Topic Review (Newest First)
07-01-2013 12:44 AM
VonKaiser I just took the top off of my '13 SE's stock intake box and so far I don't see a downside--then again I prefer a loud aggressive sounding intake. After recording some videos I ran up to O'Reilly's to pick up some wipers and had a Mistu Evo owner give me a thumbs up when I rolled up. I get the feeling I might get some heads turned with my FoFo being this loud and sexy. What can I say, I love this car.

My '03 SVTF was awesome sounding enough but this new 2.0L in my '13 sounds absolutely awesome in both stock and modified form...almost sounds like a boxer engine. I might put the lid back on after drilling some holes but I don't know yet--need more daily driving to have a larger sample of evidence. I do know the paper filter is probably going to stay to make sure less debris gets through. Don't really care about power, more sound and cosmetic look. This is also why I'm thinking about getting either a used 350Z muffler/tips or cutting the Flo-Pro muffler off of my '90 Camaro to put on the Focus. Cheap mods for the win!

*FYI*
If anyone is interested I have two short videos of what the car sounds like without the stock airbox lid just in case you want to know just how bloody loud it can be.
06-02-2013 09:33 PM
2012xSEL i ran with the top off for awhile noticed no change in engine temp. just got a bit annoying... the sound was great, but not all the time.
05-29-2013 02:34 PM
TboneZX3
Quote:
Originally Posted by Shakndbake View Post
Tbone: I must have read that wrong, my fault. I thought they were saying that the sound frequency was causing the MAF to crack.
You read it right. "Resonance" would be the vibration caused by the sound. There are plenty of owners driving around with loud, resonating intakes with no MAF issues. The only MAF issues reported were the overtightened K&N filters, which is unrelated.
05-29-2013 02:08 PM
Shakndbake Tbone: I must have read that wrong, my fault. I thought they were saying that the sound frequency was causing the MAF to crack.

I personally like the sound with the lid off but, to each their own.

I would like to see the temp. difference a well.
05-29-2013 12:23 PM
Tjrommel I think it'd be interesting to see a data log of the intake temp with and without the lid... When I get off work I shall play around with CAD and see what I come up with. Hopfully gain some approval from the true experts sch as DYN and suss
05-29-2013 11:28 AM
ChalupaJones
Quote:
Originally Posted by Shakndbake View Post
ChalupaJones: Are you saying that you removed the whole box around the filter? So the filter is just hanging?

FYI: First time poster, long time follower.
That's correct. It's not supported but its sitting pretty well.
Also, welcome to FF
05-29-2013 11:05 AM
TboneZX3
Quote:
Originally Posted by Shakndbake View Post
Also, has anyone had any problems with their MAF with removing the lid? I have had the lid off for about 6 months but put it back on because of the warnings at the beginning of this thread. That is the last thing that I need to have happen is for my MAF to crack.
Warnings about resonance damaging your MAF?

I haven't seen a single report of MAF damage from top removal or even open-element aftermarket intakes as a result of resonance. There are many owners on here with those setups. The only reports of MAF housing cracks have been from K&N intake users that overtightened their filters. Those MAF housings were replaced for ~$6.

Just keep in mind that removing the top of the air box isn't really going to gain you anything but extra sound/noise.
05-29-2013 10:49 AM
Shakndbake ChalupaJones: Are you saying that you removed the whole box around the filter? So the filter is just hanging?

Also, has anyone had any problems with their MAF with removing the lid? I have had the lid off for about 6 months but put it back on because of the warnings at the beginning of this thread. That is the last thing that I need to have happen is for my MAF to crack.

FYI: First time poster, long time follower.
05-29-2013 09:53 AM
ChalupaJones I agree it probably is, I'd like to get a cai to be honest. I took out the whole box to see what it'd do and so far I like it. I was planning to do a newmission mod but I don't have the time or tools to do it. No to mention I have the wrong kind of triangles in the front. They don't have the removable air dams.
05-29-2013 09:36 AM
Tjrommel Pipe clamp should be fine but the shroud to block off the engine temp would be beneficial I would think
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