I would recommend that you consider seriously the path of control
rather than power. A good handling car will always be a joy to
drive and perform better than one with just a power upgrade.
So do think about fitting the Bilstein coilover suspension setup before
having a remap.
Control comes before power, as any race engineer would tell you.
JJ, musmart, would you not agree ?
As to your inital question, a Colt de-CAT/sports CAT will fit.
And to continue with your 'assault on power' (not just for the noise),
a custom exhaust would be on the cards, as per the likes of cowboy
and a few others.