I think there's enough VAG vehicles about with Gen3B engines for tuning solutions to be pretty sorted now, however I haven't seen a thread on what's available out there, and any real-world experiences with Gen3B remaps (and boxes, but to be honest, I'm not a huge fan of tuning boxes.)
So I thought I'd start a thread with the goal of highlighting options for Gen3B engines, and hopefully collating any experience Gen3B owners have had with tuning their Budack engine.
To kick off, here are a few companies that offer tuning products for the Geb3B. Obviously more tuners exist, but not all have products to tune the Gen3B.
(For example, Celtic tuning don't offer a Gen3B solution on their website, but it's worth noting that some of these websites are not updated as often as they should be. )
Some of the links need you to enter car info and don't give a direct link to the relevant information, blame their poor website design, not me. 😋 Where a direct link can be given, I think I've given it.
It's by no means comprehensive, but it's a start.
Feel free to add any other companies you come across with Gen3B products and please add any experience or links to experience with Gen3B tuning.
I know you can't go too mad tuning the Gen3B, but it's a decent engine and in the Skoda Octavia it creates a fairly nippy but attention-dodging Octavia.
https://www.onlyrevo.com/product-details/software/skoda/octavia-mk3-2013-2020/421/stage-1
https://www.racingline.com/ea888-gen3b-software
https://www.getunitronic.com/ecu-tuning/volkwagen-tiguan-20l-tsi-2019-stage1
https://sportignition.com/product/group-8-jb4-tuner-gen3b/
https://www.quantumtuning.co.uk/
https://top-tuning.co.uk
https://www.turnerperformance.co.uk/car-registration-lookup/?RegistrationNumber=lb69pdv
https://www.chiptuners.co.uk/vrm/
https://www.superchips.co.uk/ECU-Remap/Skoda/Octavia-A7-2013/Petrol/Laurin-2-0-TSI-187-bhp/lb69pdv
https://www.angeltuning.co.uk/
https://jrtuning.co.uk/remap-tuning-files/viewdetails.php?make=Skoda&model=Octavia&modelyear=2017 - 2019&engine=2.0+TSI+190hp
Also, please check @skodamota's thread here, which I forgot to include in my list of suppliers, as TVS didn't show up in my UK-based search when I was researching potential remap suppliers.)