thats spot on - I was hoping for about 50BHP extra so that looks on the money - I dont think any more than that for fast road is a good idea anyway.
I assume the standard clutch can handle the extra? or do people change those out too? and what about the brakes? is standard ok with fast road pads or should I be looking at S3 swap or brembo etc
You need a Downpipe for your other mods to make as Richwig said towards 300bhp, without them then an intake and cat back aren't gonna give you full benefit.Again intercooler will benefit in the summer somewhat but the Downpipe is the one that is basically the key to the other mods, or you looking at much smaller gains. 290bhp at absolute most with your list.
Improved brake pads are worth it.
If your not keen on bigger figures then I would sell the Vwr intake, and put an improved panel filter instead.