All Things Mk5 > Performance Modifications

Stage 2 or K04 conversion?

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th3_f15t:
Thinking about the future of my GTI, and started pondering about the different options I have of increasing power. I currently run a stage 1+ standard GTI (265bhp) but would ultimately love 280-300bhp. I'm aware that the K03 turbo's limit is about 280bhp but this would just about satisfy my need for power.

So I've been totting up the costs of going stage 2/2+ and then looked at some people who's just converted a standard GTI to run a K04, now both seem to me to end up producing the 280-300bhp margin. My question is which would you guys personally do? Keep the punchy little K03 and max it out, or go for a K04 (effectively making a stage 1+ ED30 engine, not factoring internals).

I think both would end up costing about £2K all in? Could be wrong...

mvb12:
KO4 = reliable 340+ BHP
No stage one KO3 map gives you 265 BHP.

th3_f15t:
Forgot that the AmD rollers over shoot figures! My print out shows 200bhp stock and 266bhp after all the bits were bolted on and remapped.

I was thinking K04 as a first increase in performance, as then stage 2+ that (effective a stage 2+ ED30) will net really good and strong performance but in the mean time 300bhp is achievable on a K04 with just a few bolt ons and decent map (if I'm correct?).

mvb12:

--- Quote from: th3_f15t on July 13, 2014, 08:32:08 pm ---Forgot that the AmD rollers over shoot figures! My print out shows 200bhp stock and 266bhp after all the bits were bolted on and remapped.

I was thinking K04 as a first increase in performance, as then stage 2+ that (effective a stage 2+ ED30) will net really good and strong performance but in the mean time 300bhp is achievable on a K04 with just a few bolt ons and decent map (if I'm correct?).

--- End quote ---

stage one map on KO4 will give you 300-315 bhp.

if your KO4ing your gti you might aswell just go stage3 which is effectively a stage 2+ ed from the beginning as you will do it anyway. :happy2:

th3_f15t:
I didn't want to say that, but then we come to a problem...

Do I add an intake, inter cooler, exhaust and a few other stage 2 bits before going for the APR Stage 3 kit? The APR kit has the HPFP, turbo and software so wouldn't need to run those on a K03 before making the leap. This is where my problem comes from, as a plain K04 conversion would provide 300bhp reliably without additional mods.

I'm all for stage 3 but that's entering the realms of tuning I'm not ready for.  (Scared)

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