RENNtech's 3rd Generation Diverter Valve for the M157 5.5L V8 BiTurbo features an all-new Blow-Off Valve implemented into the re-designed OEM turbo tubes.

The Diverter Valve releases the boost in high-boost situation and/or boost spikes. This especially helps during the shifting process, for faster shifting and a quicker boost response for the next gear. It helps to eliminated the so called 'Boost Lag'.

With the installation of the RENNtech Diverter Valve, we are able to supply the engine with more boost pressure in order to gain higher HP numbers.

Features:

• Turbo tubes are ceramic coated in titanium to sustain high temperature and provide a more aesthetic look in the engine bay.
• Faster shifting and a quicker boost response for the next gear
• Helps to eliminated the so called 'Boost Lag'

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.