Welcome on board.
I wouldn't worry about numbers to much, each tuner (and or map) will give you different ones depending on the mods you have fitted.
Stage 2 will be a Sport cat Turbo Back Exhaust or decat TBE and a decent Cold Air Intake. Advisable to add an Intercooler for stage 2 but not essential. Make sure your DV is a Rev G, check your PCV, make sure your Coilpacks are the latter revision as there was a recall and ONLY run your car on 99RON ideally VPower Nitro+.
If your Eddy's a manual look also adding an uprated organic clutch with a new OEM DMF as you'll be close (if not over) to the limits of your OEM one. Some go straight away at stage 1 and others are ok at stage 2+ depending on age and abuse it's suffered and the way it's been used.
And your brakes are crap and they will need to deal with all those new ponies so add a BBK to the list.
Thousands of threads on all the subjects your interested in on the site. Have a search around.
