Okay I was curious my stelvio has downpipes and cold air intake and an tune alsoThe GFB DV+ will help keep turbo pressure when throttle is closed or on gear changes. Apparently the stock recirc valve is electronically operated so may not be the most efficient way of maintaining pressure.
The GFB valve should help reduce initial turbo lag when getting back on throttle after a gear change or coming out of a corner. This would be more noticeable on a modified engine and I wouldn't bother unless you're planning on at least tuning the car.
Yes, lots of people do. Particularly in spirited driving. Has ruined track days for folks.you really think I might get codes with gfb
I've had my diverter valves installed now for 10 months, They eliminate the turbo lag, the car is more responsive, overall better machine to drive. Changes the sound under hood too. No error codes. They are a bit difficult to install because of their location, worthwhile modification for me .Thank you guys made me decide not to get this I dont wanna deal with any codes that make no sense make product and have issues after installed you make product for performance and you push car to the limits!