• Brian Keene

Plug Spotlight - TGV Plugs

Updated: Aug 9, 2019



Subaru OEM Replacement TGV Sensor Plug Connector

5 Pin TGV Plug


OEM Replacement Subaru TGV Sensor Plug Connector

3 Pin TGV Sensor Plug


OEM Replacement Subaru TGV Motor Plug Connector

TGV Motor Plug

Some people delete their Tumble Generator Valves (TGVs) mechanically, but you'll want to leave the TGV Plugs in the harness for Cobb Custom Features like flex fuel, fuel pressure, and wideband input. If you are saying to yourself, "now ya' tell me!" there is no need to fret, you can purchase one of our TGV pigtails (link below) and get it fixed right up.

Subaru TGV Plugs come in 3 pin and 5 pin versions. The 5 pin style is used in later Subaru models and combines the older 3 Pin TGV Sensor and the 2 Pin TGV Motor Sensor into a single plug that does both functions.

What do TGVs Do? When the engine is at idle, the TGVs close and force the incoming airflow through a smaller passage to increase the swirl of the air/fuel mixture, resulting in an engine that operates more cleanly.

Which Model do I need?

3 Pin TGV:

2002-2007 Impreza WRX

2004-2006 Impreza STi

2004-2008 Forester XT

2005-2006 Legacy GT

5 Pin TGV:

2008 and Up Impreza WRX

2007 and Up Impreza STi

2009 and Up Forester XT

2007 and Up Legacy GT

Purchase Plugs From iWire:

3 Pin TGV Sensor Plug

2 Pin TGV Motor Plug

5 Pin TGV Sensor Plug

#TGV #PlugSpotlight

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