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Old 09-21-2012, 07:35 PM   #1
cbr1100xx
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Location: San Diego, United States
What I Drive: 2010 Focus SE-5spd Silver

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FSwerks CAI installed-have resonation in cabin at high rpms

So I just had my FSwerks CAI installed along w/Steeda STS, and SVT springs/dampers on my '10 Focus SE.

Car drives and sounds fine......for the most part.
But if I let the rpms rev out to say 4500+, the car will start to resonate and it's more of annoying vibration thru the cabin.

Told my mechanic and he said it's b/c the FSwerks CAI has an aluminum filter and b/c of where it's located you'll notice that vibration a bit.

He said a K/N drop of the same dimension would most likely eliminate it?
I just drove it again and the resonation seems to be decreasing so wonder if this will dissipates as the CAI seats itself.

Anybody else not in the higher rpms with FSwerks or other CAI?


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