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Which Header and Downpipe to use for a K20A3 swap?

Old Mar 26, 2008
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Question Which Header and Downpipe to use for a K20A3 swap?

I am looking into a K20A3 swap, into my '04 EM2 and need to know if I can use the header and downpipe from the donor EP3.

If so, will it bolt up to my Apex-i GT-spec catback for the '04 EX?

I have tried searching, but have come up with nothing.
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Old Mar 26, 2008
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Re: Which Header and Downpipe to use for a K20A3 swap?

no it will not bolt up. You'll have to shorten your existing cat back's B-pipe a bit to bolt up to the stock header/cat from the EP3 (any k20 header for that matter)

Easy fix for an exhaust shop.

also, swapping in a k20a3 is a waste of money. the power difference isn't that great. Swap in a k20a2 at least or a k24 from the tsx.

If i were to do it all over, i would do a frank swap, k24 block with a k20a2 head.
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