Matt...seeing as I fitted the shifter I can probably have a go at answering this.

Have a look at the original shifter..it has a large rubber filled central part. This I think helps absorb sound and vibration. That particular short shift is much noisier than stock. It also gets louder when you swap out the stock gear knob...

Dunno what you can do about it...there are wiser ppl on this forum that might be able to help.

Hope the wrx is still going good!

Dan

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