i used the magnet in a (shen) bullet clone. the thing is soooo much faster turning when im doing donuts on my hard wood floor it lifts the outside back whell.One of the drawbacks ive noticed is with a full charge at full speed its easyier to flip the car over but this has to be becouse of the short whell base.i had the same magnet on my zip
rip.And the magnet proformed great.my advice is $1.59 mod,why not.