Motor Swaps In Washington State

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Junior Member
I know that this topic has been asked before, but the link is broken and nothing shows up. So please don't flame me.

1. Are JDM swaps legal in Washington???

2. Will a JDM swap pass emission testing or is a cat needed???

1) Yes, jdm swap is legal in washington. I use to live there.

2) Yes, it will pass emission if swap is done correctly. A cat is needed in every state cuz' its a national law....