You can't just throw a 2871R at your car and expect it to make 375bhp without supporting mods. If I was you the first thing I'd get would be a 3 inch exhaust system, forget about a new turbo and you'll find that on the standard set-up you should make 320-330bhp once it's properly mapped. I can't emphasise just how much of a difference my 3 inch system made, the low down torque is brilliant and the boost comes on so much quicker. I genuinely think that after the brakes and tyres the exhaust mod should be the next on the list for any modifying, that way you've already got a base should you want to pursue more power in the future and it'll greatly increase the desirability of the car if you come to sell. I think Pipeworx is up in your neck of the woods and they're very highly rated by people here. It's a false economy to cut corners with an R, I've learnt that the hard way. Always buy the best you can afford and use items that add to the car not just make it faster/more powerful. It's been said before and I've no doubt it'll be said again, a well set up R running 320-330 bhp on a virtually standard set up that breathes well will feel considerably better than a badly set up cobbled together car running 350+ and while more expensive in the short term will give you so much more reward in the long run.
Just my 2 cents worth!
