Just did it this week, I feel like my baby is getting old. My question is...is there a mileage window for installing a supercharger? What is the most miles I can have on my Si and it still be ok to do the SC?

I did a search and didn't come up with anything any advice?

 

Yeah.....if you put one on after 30K miles your car will explode.

No seriously there is no official "window" for putting on a supercharger. Granted the addition puts a little more stress than usual on the motor, but it's a strong motor and as long as you take good care of your maintenance, you can put on a supercharger at 100K miles without any problems.