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Open lid Roush CAI... did I mess up?

stannypack

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Ordered my Roush CAI from Levittownford, and accidentally bought the open lid one https://www.levittownfordparts.com/sku/421827.html
instead of the closed lid one https://www.levittownfordparts.com/sku/422087.html

I installed it anyways, since it looks like the highlighted yellow seal actually meets flush with the hood insulation to prevent it from turning into a "hot air intake" (we put a flashlight inside and closed the hood almost shut and couldn't see any light)

Basically wondering if performance (not that I do anything like racing, it's just my daily driver) would suffer significantly?


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Nagare

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Doubt it'd be significant, but they must have made the change for a reason (probably better seal and temperatures).
 

AZlb5.0

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If it isn’t completely closed box you’ll get seepage, it’s impossible to have a complete 100% seal. Now what you have to do is compare the AITs between the stock box and this. If you can deal with it then you’re g2g. I’m running a K&N through my stock box because after a lot of reading there’s still the ability to make good HP through a stock box with a K&N filter and a good tune.
 

JustSomeGuy

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For what you’re doing with the car it’s fine, the open boxes seal with the hood.
 
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stannypack

stannypack

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For what you’re doing with the car it’s fine, the open boxes seal with the hood.
good to hear as that's what I observed as well

Doubt it'd be significant, but they must have made the change for a reason (probably better seal and temperatures).
yep, at least I get more sucking sounds now :clap:
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