Thunder Productions

New Dualflow version for Weber DCOE 40–45.

Optimized airflow, improved throttle response and up to +10% torque & power.

Carbon fiber reinforced.
Dyno tested.
€115 / pair.
Worldwide shipping.

These have been going out faster than we expected.
More and more builds are switching to our velocity stacks — not just for the look, but for real performance gains.

Improved airflow, sharper throttle response and a sound that completely changes the driving experience.

Tested, refined and already trusted by a growing number of builds.

If you’re thinking about it… you’re already late.

This isn’t a cosmetic upgrade — it’s functional engineering.
The rough inner finish is designed to improve airflow behavior, increasing mixture quality and engine efficiency.
Every detail has a purpose. Every surface works.

Performance is not just about bigger parts or louder sound.
It’s about airflow, efficiency and response.

Our intake system is designed to improve air velocity and reduce turbulence, helping the engine breathe better across the entire RPM range. The result is a more responsive throttle, better mid-range torque and a noticeable improvement in top-end power.

NEW “DUALFLOW” Intake Stacks
For Weber DCOE 40–45 / Dell’Orto DHLA
Designed to optimize airflow and improve air-fuel mixture quality, delivering up to 10% gains in torque and power*.
- DualFlow internal geometry for improved airflow stability
- Dyno-tested on multiple engine setups
- Carbon fiber reinforced polymer
- Industrial 3D printed construction
A simple upgrade with excellent cost-to-performance value.
€115 / pair
DM for orders 📩
*Performance gains may vary depending on engine configuration.
ramair classicracing motorsportparts carburetorperformance intakestacks webertuning racingparts throttle_response

NEW “DUALFLOW” Intake Stacks
For Weber DCOE 40–45 / Dell’Orto DHLA
Designed to optimize airflow and improve air-fuel mixture quality, delivering up to 10% gains in torque and power*.
• DualFlow internal geometry for improved airflow stability
• Dyno-tested on multiple engine setups
• Carbon fiber reinforced polymer
• Industrial 3D printed construction
A simple upgrade with excellent cost-to-performance value.
€115 / pair
DM for orders 📩
*Performance gains may vary depending on engine configuration.
ramair classicracing motorsportparts carburetorperformance intakestacks webertuning racingparts throttle_response