as madmike1 says, you cant really lower it 7mm. Though i presume you are asking about that because the Cup is 7mm lower than standard? If you want cuplike improved handling then you will need to look at stiffer dampers and springs.
Put a fat heffer in the boot and job done.
the only reason he's asked about 7mm drop is because thats what the cup suspension is.
Decent aftermarket stuff properly setup will be better than cup suspension though probably lose some of the ride comfort.
EDIT: The eibach koni combination is excellent and very good value for money. Decent coilovers (H&Rs) will cost a lot more, but properly setup will be better again.
lol no probably not. My sister inlaw had an MGF and I did wonder if it had suspension
the cup suspension is firm sports suspension, the MG's is just silly imo... anyway back to the point. yes it will affect the warranty on everything related to the suspension and wheel bearings and any other parts put under extra stress by the car being lowered
why do you hate the recaros?