Not really, it'll give more bhp up at the top. I think there's another manifold (ABF maybe) that's halfway between the skinny 9a and fat KR one that's a good balance. I guess it depends how you want it to drive. Like I said the Rado is much heavier than a MKII Golf so losing low enf torque is not a good thing, not so bad in a MKII.
nick