To clarifyDiesel is a twin-turbo
Petrol is a twin-scroll single turbo
The diesel has a twin sequential compound turbo setup.
 
					
				The Tech Behind the Garrett Turbochargers That Keep BMW B57 Diesel Engines Alive
Let's explore the innovative technologies behind Garett's two-stage VNT turbos used to improve efficiency and reduce emissions on BMW's B57 diesel engines
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		 in the tests were there for the fun and entertainment and thanks fellas for that
 in the tests were there for the fun and entertainment and thanks fellas for that 
 
 
		 
 
		 
 
		 
 
		 
  
  
  
 
		