Not that it really matters, but shorai comes with nice easy to install foam pads. I bought mine at proitalia and they said that they have had several ballistic batteries returned and no shorai batteries returned. So I went with shorai and it starts my 848evo great.
I installed a Shorai in my 998 yesterday, took about 10 minutes used 2 of the foam pads included ( 1/2" under and 1/8" behind both stuck to the battery). It mounted right up like the stocker with factory hardware. Way too easy. bike fired right up.