So I recently got myself a GT86 2012 and I am looking to get a decent sound out of this thing without spending a fortune on it. 700€ maximum! I've been recommended "invidia n1" once but I could only find it for 1,100€+. What should I do/get in order to achieve a decent sound with this amount of money.
Is there some other modification I should prioritize ahead of this?
The car I have is completely stock and has not been abused by its last owner.