2004 to 2020 Mazda 3 Forum and Mazdaspeed 3 Forums banner
1 - 1 of 9 Posts

· Registered
2012 Mazda 3 GX MT5 non sky
1,695 Posts
I have 3M on my ducktail and tested it to 170 kph.
The duck tail has much more contact surface than your spoiler.

With your spoiler i would drill holes and also use 3m to seal water away from the drill holes.
Worried the drill holes will rust.... Spray something like this Rust Protection & Lubricants
before you install in the drill holes and bolts
  • Like
Reactions: bernardk12
1 - 1 of 9 Posts