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Old 01-21-2020, 02:41 PM   #3
PK-EK
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You always want to use the K20a2 (02-04 RSX-S) Engine Harness
almost all kits on the market today run off that set up

Don't forget your engine management.
Hondata Kpro
Or K-Tunner

GD3 Fit is very expensive for a Kswap because of the first generation Canbus system requires custom wiring if you want all your HVAC ect to work.
newer fits are great for a K24swap

Your K20z3 transmission might be a great choice on paper.
but like the engine harness, most swap kits (motor mounts and shifter boxes) are made for the K20a2 (02-04 RSX-S)
IIRC the shifter mechanism for k20z3 trans moves in the opposite oriantation as the RSX's shifter box
plus the K20z3 transmission different mounting points - and most kits are based off the K20a2 transmission
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Last edited by PK-EK; 01-21-2020 at 02:55 PM.
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