Nothing; a great motor.
Great; if you drive it right it goes like hell. It's easy to tune; I have a Bluefin chip, DMC induction kit and Powerflow exhaust. My car is 221bhp and it even beats Subarus, so it would leave Clio 182s and all cars similar
Point 1. I doubt thos mods would get increase the power by that much.
Point 2. Even if you did have that power, you wouldn't beat a Subaru; maybe a crappy non turbo model, but I bet you're not talking about them.
P.s I don't own a 182; in fact I hate the 172/182, I think they look crap and every review of them on here over estimates their power, saying they can beat the Civic Type R and Focus RS etc, something that they obviously can't, which makes me hate them more.