Hi, I finally received this one today:
It looks much better on the front signals, but unfortunately it still doesn't work on the tail lights
Tomorrow morning I will try what TheWizard said, bending the contacts on the LED, and hope that'll do the job.
The good thing is, they both work perfectly, no hyper flashing! and according to the website, it has built in resistors:
CANBUS Compatible
Properly equipped with load resistors, Lumen LEDs will not interfere with CAN Bus data systems on modern vehicles so equipped.