Intake Manifold
10-10-2006, 04:49 PM
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Intake Manifold
I have a question about intake manifold. What's the diffence between a 99-00 civic HX and an EX intake manifold. Are they both the same and could an EX intake fit a HX perfectly? Please help me 
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10-11-2006, 05:52 AM
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Re: (bibong)
the intake manifolds plenum and size are identical, the HX manifold has provisions for the EGR valve, EX does not, there is no aftermarket manifold that will "correctly" fit a HX, if you do put one on, you WILL get a check engine light
ps. any crappy intake arm will fit, but you said manifold
ps. any crappy intake arm will fit, but you said manifold
10-11-2006, 05:53 AM
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not sure what a hx is as we dont have that trim up herre in canada but your ex(our si) has a y8 head and intake manifold. it does bolt up to the y7 head easily enough, you might have to splice a few wires to get the sensors to their sockets but its shouldnt be a problem. most people would swap the head at the same time.
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