Excellent work! I'm sure it will help newbies.
If you have time, you should do something for subwoofers. You've tried most methods so i'm sure you would come up with a great piece.
Turbo Dynamics Hybrid Turbos, Wagner Intercooler, DPF Delete Pipe with Sports Cat, Ecotune custom map ~ 422bhp & 618ft.lbs
Ohlins R&T with custom Swift rears