Frank.Herbst
Well-Known Member
- Joined
- Nov 4, 2018
- Threads
- 53
- Messages
- 498
- Reaction score
- 428
- Location
- Denver, CO
- First Name
- Frank
- Vehicle(s)
- 2019 GT350
- Thread starter
- #1
On the bottom of my Gurney Flap.
Sponsored
Nice 68.I leave mine on all the time, but I'm mostly driving it to/from the track
I've had mine on since new and have no chips on the back of the car. As far as MPG someone somewhere said about 2MPG lower with the flap at highway speeds. If you are worried about MPG you bought the wrong car.There is some thought that running with the Gurney Flap on all the time can increase the likelihood of small rock damage to the rear facia. Something to consider and check
https://www.mustang6g.com/forums/threads/rock-chips-next-to-rear-plate.122819/