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I bought this a while ago late at night n didn't realise it was from the states, it's arrived and says it's for a 2015+ impreza, will this still be ok for my car? A legnum vr4, as the piping should still be the same but I'd understand if the plugs are Subaru and I'd need to rewire my shape plugs on to suit my wiring, my question is, is the amount of wires the same I.e can I just wire on the legnum plugs n be fine or is this more modern and has more wires or less rendering it useless?

Also do I need two of these as I have twin turbo?

Can't remember where I bought it from so will be a pain to search it out etc to send back if I can't use it

Thanks