If your pads come without a sensor, just plug your old stock ones' in if it
isn't worn down. If the old sensor is worn (opened circuit) solder both ends
of the wire and put some insulation over. This way there's no light flashing,
no need to code and the plug is protected from the elements.
There's no huge advantage of Cryo treatment. It's a very minor advantage.
Claiming Cryo treted rotors are 'much stronger' - where's the prove?
Don't let marketing BS fool you. Cryo is significantly cheaper compared to
heat treatment as performed by Tarox, AP or PFC and higher-end Brembos.
That's why Cryo is used. No single higher-end product comes with a 'cryo
treament'. That says it all. Don't get me wrong, it's not bad. But don't tell
they're 'much stronger'. Anyway, 'strength' isn't any serious issue with cast
iron brake rotors. Try bending a cheap $20 one.
Quebster: Yes, that's true. Like former RS3/TT-RS rotors the CSS/R PP ones
only come in one guise instead of two. One single PN. Therefore one side is
wrong, thus running hotter. Still a good rotor though, good enough for 7:48
laps on the Nurburgring. Not a racing rotor though.
A real 'serious upgrade' would be AP Racing*, Brembo*, Alcon, Performance
Friction or Movit - two-piece of course. You'd pay 1k for a pair though.
*their racing devision, not the stock equivalent stuff
I doubt they have it, but I'm willing to learn. Their website doesn't specify
which rotors come with directional vanes and it's highly uncommon at least
for affordable (one-piece) rotors to have this technology. Even Tarox don't
come with directional vanes (except their two-piece rotors of course). That
is why this must be questioned. Quebster could help us out with some proper
pics. Admitted - if the Stoptechs do have actually directional vanes (both
sides correctly would mean different part numbers left and right), they'd be
good value.