Midnight Motorsports - Turbosmart vIWG Actuator for N20/N55 PWG Turbos

Turbosmart Upgraded Vacuum-operated Wastegate Actuators have been developed to provide the maximum possible boost response for your factory frame turbocharger. The Turbosmart vIWG Series of upgraded Actuators benefit from an increased ‘Working Ratio’ over the factory equipment resulting in improved boost response, throughout the RPM range.

This Improved ‘working ratio’ is achieved through an increase to the effective surface area of the diaphragm & revisions to the actual springs fitted resulting in greater leverage of the forces the actuator is working against (boost and backpressure) while still being super-responsive.

Upgrading with the same base pressure as factory, you can expect a broader boost & torque curve through peak boost being achieved earlier in the RPM and being held longer, into higher RPM. These improvements can be amplified with higher base pressures, however tuning & recalibration is recommended for optimal performance.

Fits the following N55 PWG Vehicles:

• 135i E88   (09/2009 — 10/2013)
• 135i E82   (09/2009 — 10/2013)
• M135i F20   (04/2011 — 02/2015)
• M135i F21   (12/2011 — 02/2015)
• M235i F22   (10/2012 — 06/2016)
• 335i E90 LCI   (09/2009 — 12/2011)
• 335i E91 LCI   (09/2009 — 05/2012)
• 335i E92 LCI   (11/2008 — 06/2013)
• 335i E93 LCI   (11/2008 — 10/2013)
• 335i F30   (04/2011 — 07/2015)
• 335i F31   (08/2011 — 06/2015)
• 335i F35   (06/2011 — 04/2015)
• 335i F35 LCI   (01/2015 — 01/2016)
• X1 35i E84   (04/2009 — 04/2015)

Fits the following N20 PWG Vehicles:

• 125i F20   (07/2010 — 02/2015)
• 125i F21   (07/2010 — 02/2015)
• 328i F30   (04/2011 — 01/2016)
• 328i F30 LCI   (01/2015 — 10/2018)
• 328i F35   (06/2011 — 08/2015)
• 328i F35 LCI   (01/2015 — 08/2016)
• 528i F10   (06/2010 — 06/2013)
• 528i F11   (06/2010 — 06/2013)
• 528i F18   (03/2011 — 08/2013)
• X1 28i E84   (04/2009 — 11/2015)
• X3 28i F25   (02/2011 — 08/2017)
• Z4 28i E89   (01/2011 — 08/2016)