Well if you have a motor from Bosch then there is a tuning chip called Speedbox that you can use. They have a product capable of derestricting even gen 4 Bosch motors.
Here's a link: https://www.speedbox-tuning.com/for-bosch
Well if you have a motor from Bosch then there is a tuning chip called Speedbox that you can use. They have a product capable of derestricting even gen 4 Bosch motors.
Here's a link: https://www.speedbox-tuning.com/for-bosch