PSP CNC Big Bore Turbo Exhaust Adapters for 2011-19 Ford F-150 3.5L Ecoboost


SKU: D35-TBA-59 Category:


PSP Hi-flow CNC Big Bore Turbo Exhaust Adapters for the Ford Ecoboost 3.5L engine.

The PSP Big Bore turbo exhaust adapter’s were developed with performance and longevity in mind for the 3.5L ecoboost engine.  The OEM turbo exhaust adapters measure 2.063″ which creates a bottleneck and a lot of back pressure.  The PSP Big Bore units measure at 2.323″ or 59mm. This opens up the cross sectional flow area from 3.341″ to 4.238″ a whopping 26.85% increase over the OEM units!

By dramatically increasing the flow area several things are accomplished:

  • Reduced back pressure, turbos hate back pressure.
  • Increased transient response from the turbo aka faster spool.
  • Lower waste gate duty cycle, the turbo is spinning at a lower RPM to achieve the same boost. Much more efficient and increases the turbo life span as it is spinning at a lower RPM comparatively.
  • Lower exhaust gas temperature.  Lower EGT’s increase the turbo life span and lower the chance of a heat related failure.
  • A higher CFM threshold for exhaust gas efficiency.
  • More HP and TQ!

PSP Big Bore Turbo Adapters will fit the following vehicles with the 3.5L Ecoboost engine:

2011-19 Ford F-150

2017-19 Ford F-150 Raptor

2015-18 Ford Expedition

2015-18 Lincoln Navigator

Kit includes:

2 Hi-Flow Big Bore Turbo Adapters

*Installation hardware is NOT INCLUDED


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