Mikey_g,
Reliability is our first and foremost concern with the products we make. We currently race in a professional motorsport series called Grand Am and have done so on the FSI motor starting in 2008. This is a test platform for us to figure out the limits of the motor in the most grueling environments so we can make sure we're not leaving a lot of power on the table but also not making a product that will harm your motor.
Fortunately you're a bit lucky with the golf R.
The Rods are strong. The pistons are strong and the turbo is strong!
So, here's the upgrade path I'd take.
First, the Stage 1 ECU upgrade. It will work well with the VWR intake and catback exhaust.
Next add the APR high pressure fuel pump and pick up the FREE APR stage 1+ ECU upgrade.
After that, add the APR high flow downpipe, and pick up the FREE APR Stage 2+ software.
If you're looking for map switching, do know we're testing it on our Golf R right now. : )
Next I'd look into upgrading to the larger APR Intercooler system.
After that, If you don't want to go big turbo, we'll have a new runner flap delete mod that should pick up more power, is made by APR and and will have matching software. We'll be testing that soon for stage 2+ customers.
If you do want to go with a big turbo down the line, our new turbo system is about to be released. It's using a GTX2867R turbo and is safe for the factory rods. IT only uses high quality materials. No skimping and the price reflects that!
Up next would be the runner flap delete added on top of the stage 3 system.
And beyond that, we are going to offer head porting.
And a step beyond, we have fully built motors.
The future is bright! : )
One thing you should be aware of, we offer software and matching hardware for all of the products we offer. And these products are made by APR. So you don't need to mix and match other modifications together.
All in all, we have support for you every step of the way. You can't go wrong.
Go APR!