Im not sure if theyre even compatable
and if they are then its cant be worth the money
EDIT**
Bam y0! Just as I thought
http://www.honda-tech.com/zerothread?id=474050
Quote:
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K20A3 has only Vtec in the intake cam. K20A-A2 have Vtec lobes on both cams. This means not only would the Computer need to be swapped out but the head and rocker (valve train) arms would need to be swapped. Basically go buy yourself a type S head and internals set up with type S ECU
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