Milltek Downpipe with stock exhaust? And general tuning questions

[vwgolfgtimk5]

Car: MK5 GTi 2008
Mileage: 27K

Am I correct in saying the Milltek downpipe and de-cat will fit to the stock exhaust?

I am not interested in adding additional noise or looks so have excluded a full exhaust. What Stage do you think the below mods would be considered and could I add anything else to benefit the performance? A high pressure fuel pump? A new clutch will be added at some point in the near future.

R-Tech remap
K&N panel filter (or should I go CAI?)
Milltek downpipe de-cat
GFB DV+
Cam follower replacement kit? Though my car has only done 27K.

[GrayMK5GTI]

You will need a reducer as the Milltek is wider than the OEM cat back. Pipewerx sell down pipes which fits OEM cat back

Google them, or try ebay   quality looks great and it's cheaper than Milltek too

If you had an intake and a fuel pump that gives you Stage 2+ level of power. Nick will tweak your map if you want to go back with more mods at a later date.

[WHOZBOSS]

Am sure I've read that for the k03 cars you don't really need a upgraded fuel pump which when you think about it makes sense as the k04 cars don't need it till going stage 2+ and at this time will be running 350 bhp where as the gti will be about 280?? I may well be wrong but it's just a debate I read on r tech's Facebook page

[dan930]

When I had the ed30 I fitted a milltek sportscat mated to the oem backbox,u will need a reducer mate..

[Donx22]

Just need a redcucer, think i have a spare one that came with my Miltek kit if you want me to have a look in the garage 

[vwgolfgtimk5]

Thanks for the offer, though I just bought a turbo back from campbell511 with everything I need. 

[robreg5]

In regards to fuel pump, I think ed30 engine may have different cam lobe to drive the pump, therefore giving pressure to about 340hp.

[Paradox1]

Does anybody know when or if the standard catback would be a restriction?

For example, would you need a full turboback on a k04 stage map?