To the OP's question -
I think the NPP is worth getting. You really won't know if you'll like it long term or if it's loud enough for you until you drive it awhile. If you are planning to mod your car, you're gonna spend some bucks anyway. I would get it and drive it around awhile. It's all subjective, many like the NPP and find it plenty loud enough in Track mode or with the fuse pull. I liked mine, but got bored and got the Borla Atak
