Finally getting around to cleaning out the garage & up for sale is my beloved Burger Tuning JBD for your E90 335d or E70 X5d (also includes the "BT Tool" code reader/reset device that was an add-option from Burger).
I ran this for ~100k miles with no issues (occassional codes if flooring when cold and tune is set to 100%, but this is easily avoidable by turning down or letting your car warm up as you should anyway). The only reason it's no longer on my car is that I had the car in NC and decided to go BPC Stage II+.
If you're not familiar, just a simple plug into the high-pressure common rail sensor and you're ready to run with a SUBSTANTIAL horsepower gain.
Contact-Free Pick-up available.
$130 for local buyer with painless pick-up (pick-up zip: 20816)
Dyno from Burger:
Installation Instructions:
https://www.n54tech.com/instructions...tall_Guide.pdf
Also available (just in case you want to kill multiple birds with one stone):
Feel free to reply or otherwise reach out with any questions, and stay healthy out there. Thank you for your interest!