Header banner
Revain logoHome Page
David Skyline photo
1 Level
1342 Review
58 Karma

Review on ๐ŸŽบ GFB Whistling Trumpet: Versatile Valve Accessory for All Instruments by David Skyline

Revainrating 5 out of 5

Whistle rating best in engines and engine parts

Extremely easy to install. Just spin it. You have to open the valve all the way to really hear the difference. If the valve is half closed you won't hear any real difference. Even if it sounds very nice. AAA++++!

Pros
  • Builds confidence
Cons
  • Expensive