i'm looking at building a box for a single 10 subwoofer in my 08 350z and was wondering if anyone has ever had a freq sweep done to there car.

 

Do you mean like a bass test?

 

no like a frequency sweep through the inside of the car. in order for me to tune my box right for my car i need to know what is the max tuning frequency is for my car so i figure i find out on here if anyone has ever had this done.