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Velocity Stacks
GMR Velocity Stacks/Air Horns/ Trumpets Straight Bolt on
from £25.00
Made to order
Super-lightweight carbon composite velocity stack.Up to 5,000× more heat-insulative than aluminium, keeping intake temps lower for more consistent power.Direct bolt-on fit with the common M5 × 65 mm Jenvey/Weber mounting spacing.Made to order – please allow 7-10 days for manufacture before shipme
Advanced Carbon Composite Velocity Stack
Manufactured using Direct Digital Manufacturing (DDM) from high-strength carbon composite, these velocity stacks are super lightweight and exceptionally insulative. Designed to fit the common M5 × 65 mm Jenvey/Weber mounting spacing, they’re a true bolt-on upgrade.
Why Our Velocity Stacks Lead the Way
Hollow Carbon Composite Construction Unlike aluminium, our stacks are naturally insulating. In fact, they are up to 5,000 times more effective at preventing heat transfer than metal. This keeps intake air cooler, reduces heat soak, and delivers more consistent power.
Ultra-Lightweight With an incredible weight saving over aluminium, our velocity stacks improve throttle response and reduce overall vehicle mass.
Efficient & Sustainable Manufacturing DDM only adds material where needed – resulting in less than 0.001% waste during production.
Optimised Geometry, Perfect Fit Each velocity stack is precision-designed for your throttle body size, bore spacing, and length requirements. With the standard Jenvey/Weber M5/M6 × 65 mm bolt pattern, installation is quick and hassle-free.
Priced individually
Made to order – please allow 7-10 days for manufacture before shipment.
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