Turn In Concepts TGV Deletes 2015+ WRX

  • The stock Tumble Generator Valves (TGVs) are there to cause tumble for better air/fuel mix.  BUT even when they are open, they are smack dab in the middle of the intake manifold runners, and they restrict air flow.  Sure, they do open, but the actuator rod alone TAKES UP ALMOST 30% of the port cross sectional area.  That is not good for letting the engine breathe.

    The Turn In Concepts TGV Deletes eliminate the rod, the flapper, the screws, AND have bigger ports than the stock parts.  The outcome was brilliant.  TIC saw gains of 30 lb-ft on just the Cobb Stage 1 map, and even more with custom tuning.

    Note that removing the factory TGV housings WILL result in Check Engine lights, so you'll have to have some kind of custom ECU mapping to address that.

    Sold as a pair.  Fits all 2015+ WRX.

  • SKU#: 09001

    Shipping Weight: 5.0 lb

    Manufacturer: TiC

    Category: Other Intake