Microtech LT8 for me........

[Max777]

dude the s4 and s5 is not really that different on a microtech harness, different injector plugs, different coolant temp sensor plugs, etc... but overall you only have:

4 injectors
1 coolant temp
1 air temp
leading coil
trailing coil
TPS

and that's all I can think off. Not too hard really. Get some of those quick cut cut wire stripping pliers and some Knipex professional crimping pliers, and a heat gun, should be done in no time.

most of the time you can just use heat shrink crimps and convert most of the plugs over. Microtech has a wiring diagram and installation guide on their website.