The T9381 is the latest addition to the DV+ family, and offers all the benefits you’d expect from a DV+:

The T9351 DV+ has been and remains the workhorse of the DV+ family. By replacing the problematic valve mechanism of the factory electronic diverter whilst re-using the solenoid, the T9351 works brilliantly, keeping the cost low and the benefits high.
However, with the T9351 there is an increase in overall height of 11mm, which in some cases can cause clearance issues, for example:

Here’s where the T9381 comes in. Featuring a low-profile integrated solenoid, the T9381 is shorter and more compact than even the factory diverter, ensuring it will fit the tightest applications.
The T9381 can also be used instead of the T9351 when you’d prefer to replace the entire factory diverter valve rather than re-use the factory solenoid (e.g. if your solenoid is faulty).
 
Is this the right valve for me?
If you haven’t already checked that your vehicle is on the fitment list, do that first using our vehicle search function above.
If you get a few different valve options for your vehicle, use the guide below to make sure you’re choosing the right one for your needs:
   

European manufacturers are pushing their engines to the limit. Get a DV to match.
GFB’s DV+ diverter valve range offers a direct-fit performance solution for the weak factory diverter valves used on many modern vehicles. By retaining the factory ECU control and recirculating the vented air, the DV+ is a purely performance-orientated product.
GFB’s DV+ design solves the longevity and boost leaking issues that are common with factory diverter valves, and also changes the operation method to “pilot actuation” to ensure better performance on stock or modified engines.
Furthermore, these benefits won’t cost you the Earth! Rather than throwing the entire factory diverter valve system in the bin (like other manufacturer’s “solutions”), the DV+ keeps what works and replaces what doesn’t. It retains the factory solenoid and ECU control to ensure simple installation and reliable operation.