All Things Mk5 > Performance Modifications

Ko4 up grade

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Dv21:
Guys I'm gonna be up grading from ko3 to ko4 very soon I'm buying Donals set up but I have rs4 injectors will this work ok?? And intake and hpfp which ones ?? Also I'm in reading Berkshire where would people recommend I have this fitted and remapped the car currently mapped by shark performance any help would be appreciated
Thanks Daniel

danishmkvgti:
There's both a Leon twintake and GTI twintake for sale here atm, so depending on what car you could get an excellent intake, read RedRobins review on the twintake to get an idea of what you would get.

Regarding HPFP, there's the Autotech internals for home fitment or get the LOBA rebuilt HPFP for peace of mind IMO

RS4 injectors would be overkill but as long as your tuner has a map for the K04 with RS4 injectors all is fine, but do consider the S3 injectors as the RS4 are for above 400bhp IMO

Dv21:
Thanks for that it is a gti which I forgot to add I may have to put these rs4 injectors up for sale once again thanks for info  :happy2:

sub39h:
is there really an improvement with RS4 injectors? i read somewhere that they flow the same amount of fuel as the regular K03 injectors, which would make sense as each cylinder is only producing about the same amount of power as each cylinder in the K03 engine 2.0T (197bhp/4cyl = 49ish, 414bhp/8cyl = 52ish) 

bacillus:
Problem with the rs4 injectors is that don't give an ideal spray pattern for the gti engine vs the S3 ones.

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