Nice colour SE

It looks like you have a good start with the intake bits which should net you around 135rwkw at ~10psi and is how the car should have been from the factory but you'll find the ECU starts becoming problematic when you add the exhaust, the car will cough and splutter a bit when cold and will run lean.
Decide now upon your upgrade path so you wont waste $$$.
With larger injectors and a 2.5" exhaust at 10-12psi you'll be able to achieve 150rwkw on stock internals and that's a lot of fun.
If you're happy at that level, a ChipTorque "flash" (it's actually a chip replacement) is the cheapest option and several guys here are very happy with it since it returns the car back to "factory smooth".
If you're a tweaker or want to go beyond 150rwkw, an ECU upgrade is a "must-have" and forged internals are required if you don't want to blow up your engine.