My manager always go through the same process when it comes to cost savings.
1) Is it going to affect things by a detectable amount?
2) If shit happens is it going to be bad?
3) If it does turn out bad can the finger be pointed solely at us?
If no to all 3, go right ahead lol.
Over here the FQ or Ralliart series retains the MMC factory warranty. 5 years for the car, 10 years for Powertrain.
My dealership (Zupps) tells me that I can head towards Ralliart power levels and will not void my warranty and they've confirmed it with MMC Australia. Plus I have a government guaranteed warranty which overrides all their T&Cs
To remove the bottom without an engine crane or a car lift for an Evo is close to impossible due to clearance, you can do the heads, but that is the extent of what I can do at home. I don't do the bottoms, only the tops and what I can access. Although if you asked me if I torqued industrial heavy machines like 3 phase oil cooled units, compressors and so forth, I'd say that is part of what I do.
Read the location under the member thing. I don't live in M'sia. We get 98 at every pump. We used to get 100 Octane at Shell, now no more tho

Ooo... Sorry for not having time to read through your profile...
I knew Vpower from australia is RON100. Not sure if they're still available.. But will soon to find out during commissioning trip in Aussie in short future...
However, As what I've claimed earlier... Torque wrench, correct for the head... But partial correct for bottom.