Relentless are rebadged BC Racing I believe, and you have to order them via the TFSI tuning fecesbook group. Enter the playground with caution, order them, then get out again
![Grin :grin:](https://www.mk5golfgti.co.uk/forum/Smileys/newsmileys/grin.gif)
Samuel Bryant is the contact.
Vogtland seem to get good reviews as well.
If you just want mild lowering and stiffened up a bit, consider also fixed strut kits, like Bilstein B12 Pro or VW Racing line. Everyone seems to just go for coilovers by default without really knowing what they want to achieve.