My friend own a 530is(manual)94'!The badge say "is",was much faster like my ex530im(not as fast like my 540i6),suspension like the euro m5,lsd,!He say every parts are original bmw,never updated!I did some search about but never find anything!!???????????

never heard of a 530is...

i could be wrong

but even if it is an "is" it shouldnt be faster....they didnt get any different hp numbers out of the m60b30 over stock 530i