Are the the HP sports suspension kit any good, are then fully adjustable Front & back and how low do they go?

yes, sort of, and yes at the back, and no for the front!!!

you have to remember that the HP's were designed for rally/race use, and not for the likes of us who like to "slam it to the ground".

there adjustable to 3 set positions. on the lowest setting the back is about as slammed as you want to go, but the front is still quite high, so the wheels can get at stuff. Have been thinking of getting some custom springs for the front of mine??? still an idea at the mow.

as for how they handle, well, thats one thing they do very well. there primory design is to handle rather than look good (they just happen to do that quite well to).