Mod matrix, based on text above...
x = No, unnecessary, perhaps even counterproductive.
m = Maybe. Might help, might be a good investment for the future, might give negligible gains, might even hurt.
y = Yes. Will most likely be worth doing, maybe essential.
Replacement / upgrade oil line solutions. Oil lines do nothing for performance so are not included in the mod matrix. These will fit stock or usual MHI-based upgrade turbos. Individual turbo vendors may require you fit their oil line kit or specify one you must use if you want your warranty. The very popular BNR is one such MHI-based turbo builder that requires an oil line upgrade, and there are probably others. Any turbo will probably benefit from such an upgrade as the factory lines are skinny, easily kinked or clogged and have built-in restrictors. As a general rule, IHI non-ball bearing turbos will survive on stock oil lines as long as the lines and banjo filters are clean and clear. MHI turbos seem to need a bit more oil volume to succeed and may require an aftermarket oiling solution. Turbos based on Garrett ball-bearing guts usually have a restrictor built-in, or need one in the line, and have more particular requirements in general than others. Consult the vendor to be sure.
You may want to read the turbo failure wiki
to see how and why the factory VF-40 and VF-46 turbos die so easily.
FP oil line
. This can be ordered with an inline filter
which is easier to get to than the stock banjo filter. Caution: Buy extra crush washers for this project if fitting the line to MHI turbos. I had to fit three washers under the banjo at the turbo end to avoid the fitting fouling the bearing housing. Some have needed four. A smaller number of owners report problems with the new banjo fouling the turbo inlet tube. The inline filter kit may need additional -4AN hardware to install it.
Infamous Performance oil line kit
with inline filter, fireproofing etc. This is a very well thought-out kit that's been on the market now and is well-received. There's one review here
, if you know of another please mention it so I can add a link.
Not quite an oil line kit, more like a filtration system revamp
. Amsoil remote 2-micron filtration kits.