How to install Viper FX audio on Huawei Ascend Mate 2

I'd really like to install Viper FX Audio, that's my latest struggling. I've tried, busy box Stephen (Stericson), busy box on rails, and tried converting it into system app.
But every time it says install busy box. Am on rooted 4.3 Please help.

Also, if there is any thing better then Viper Audio please mention steps here.