Hey guys

I'm buying a used invidia q300 catback off a guy today for $500. Jst wondering if this is a good price I know they retail ~1290 but I'm not not sure how much used ones go for. Good condition (I'm assuming) probs done round 20k kms.

Sorry, I don't know much bout cars and I jst don't want to get ripped off lol. 500 is a lot ya know.

Alright. Thanks