im guessing you mean you are wanting to upgrade to a k03s?
*queue the K03s, its not a worthwhile modification* brigade....
I would strongly recommend Miltek, they seem to be the chose exhaust on here, although they are veyr expensive
the DP & Race CAT are one of the best mods you can do to the ibiza as it really removes the bottle neck that strangles the ibiza
im loving the sound of that!!
i have fmic , scorpion cat back revo and filter ..... am i going to expecting more power! much more and what bout noise??
cant wait