No they fit with no mods!
I'll say first that this isn't my personal experience as I'm not quite there yet but having read around over the years for the 200+ mark it looks like you'll need cams with a lift of around 12-13mm and duration of 290-300 degrees,high comp pistons,itbs,58mm exhaust,ported head.
This is obviously a rough idea of the stuff you need and you'll have to make sure all of the other parts and components are done right to run this set up properly and reliably.
As an example this was the Saxo,at one stage,from the guy which I buy some parts from,from Italy: 220 hp at 7750 and 21,58 Kgs of torque at 6500 limiter 7800 (he also upped the engine size from 1600 to 1800),all on Dyno printouts.
If you're going down this route you should get it remapped from Chipwizards, he's a master on these cars!