Description
INDYCNC “Rock On” Header Flapper – Demo Derby Exhaust
Make noise, shed pressure, and throw attitude while you’re at it. The INDYCNC “Rock On” Header Flapper is a functional exhaust flapper designed for demolition derby headers, featuring a bold rock-on hand gesture inspired by live music and concert vibes.
Built to be bolted or welded to virtually any header, this flapper allows exhaust pressure to escape under load while adding unmistakable personality to your build. Whether you’re running tight rules or just want something different sticking out of the pipes, this flapper delivers both function and style.
Each flapper is sold individually, making it easy to place exactly where you want it on your header setup. Built with derby abuse in mind, it’s made to survive heat, vibration, and hard hits while still standing out in the arena.
Features:
- Designed for demo derby headers
- Iconic “Rock On” hand gesture design
- Can be bolted or welded to most header setups
- Helps relieve exhaust pressure
- Adds aggressive visual style to your car
- Sold individually
- Built by INDYCNC
Perfect For:
- Demolition derby exhaust setups
- Header pressure relief
- Builders who want function with attitude
- Cars that need to stand out in the lineup
If you’re tired of boring exhaust parts and want something that hits as hard as your driving style, the INDYCNC “Rock On” Header Flapper lets your car scream loud and proud—before and after the green flag.
