So I’m looking for advice, I’m on maxed out s trim, and I’ve been searching for a way to scoot more power out of the car. Basically looking for an Si trim impeller. I find Jon bond performance. There selling a part as a billet supercharger impeller. They seem to have a great shop and a great reputitation but this upgrade is promising huge returns for only 600$ I usually find if it’s too good to be true, it probably is. So I’m asking, what do you guys think about something like this?