This was discussed a while back and so far as I know, no one has done it. The K04 isn't crazy money and is the best solution. You could actually go K04 and keep original injectors and fuel pump for 300-310bhp. You would have to get a custom map though as this isn't a setup that Revo, APR etc support
That's a cheap-ish boost in power
APR do.
they have a few options already developed for K04 conversions on the K03 TFSI.
It was APR who gave me the idea.
- K04 with S3 injectors, stock intake, stock exhaust, stock HPFP approx 300hp
- K04 with S3 injectors, Uprated APR HPFP, stock intake, stock exhaust, approx 320hp
- K04 with S3 injectors, Uprated APR HPFP, Intake, TBE and intercooler. approx 350Hp
Option 1 makes so much sense on the K03 TFSI as that 300Hp is cheaper than making a Stage 2+ K03 setup and it makes more power with less boost/stress. Wish i had known about it back alongwhen i had my octavia tbh.
I have a KO4 sitting ready to go on, but am hesitant to put it on until I have absolutely necessary to run it safety. I've got ths fmic but stock got stock hpfp and exhaust. Granted the exhaust is changing next month to accommodate this and replace the knackered on, but as my golfs my daily I don't want to do anything that might effect reliability.
So very tempted to get the hpfp in next month with the exhaust.