All Things Mk5 > Performance Modifications

HPFP Upgrade.

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pudding:
Honestly, mate.  Go for the VIS.  Uses stock spring so no excess tappet wear and you get enough flow for a bucket load of horsepower......and it's the cheapest upgrade out there  :happy2:

ROH ECHT:
I would not have even mounted it without knowing piston stroke, spring rate, etc..
Good for removing and going with the upgrade. Just know when reusing the collar nut that contains the two seals from a used hpfp...you risk early leaking. Probably not going to happen right away...but just know if you ever see low rail pressure codes, then you'll need to see if you detect fuel in the oil. Along with the usual checks of course.

Vagnum:
I’ve just got my GTI and found out it’s got a stage 2 map on already standard intercooler, standard intake and cats still in any fitted ally end cap genuine intercooler over size Ram air intake and have a decat was wondering would the Audi TTS HPFP work on stage 2 as they are good for stage1/2ish on the TTS has any one fitted one not looking for massive amounts of power as it’s going to be a fast road track car so can’t see fitting a branded HPFP being any benefit until fitting ko4 ?? 


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pudding:
TTS/S3 has different mapping and cams, it's not just about the pump itself, which is the same as the GTI btw.  Just stick the VIS internals in.  Taking a pump from a completley different engine (i.e RS4) will just cause headaches further down the line.

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