According to PapadakisRacing, the answer is yes. And they reckon that the B58 is capable of pushing out 1,000bhp. Yes, the tuning company plans to take the Supra's 3.0-litre turbocharged six-cylinder to such extreme outputs and for them to get there, they have to strip it down to see what it is made off.
The B58 engine has been in existence since 2015 and has since proven itself to be easy to work with. A tune on the B58 engine could see a BMW 340i's horsepower numbers jump from the factory's 326bhp to well over 420bhp.