An electronically - controlled wastegate actuator maintains boost pressure by closely controlling the flow of exhaust gases through the turbocharger. (greencarcongress.com)
BMW says improvements to the all - aluminium N55 3.0 - litre turbo six, in which the M Performance TwinPower Turbo is integrated into the cast - steel exhaust manifold, include new near - source acoustic shielding, combined with electric wastegate control, latest - generation VALVETRONIC variable valve control and Double - VANOS variable camshaft timing on both the intake and exhaust sides. (motoring.com.au)
And new electronic wastegates for improved throttle response, and new camshafts and connecting rods... Well, you get the idea. (automobilemag.com)