ITG Bolt-On Air Horns and Stubby Velocity Stacks
These aluminum velocity stacks from ITG are designed to be bolted to the front of Weber (and similar) side-draft carburetors, rather than retained by a sleeve inside the throat. They all feature 65mm bolt spacing. Choose from the beautifully-machined full-radius air horns or the ultra-low-profile cast "Stubby" stacks when there just isn't room for a proper intake trumpet.
ITG recommends leaving a minimum of 3/4" (19mm) room between the inside of the filter and the top of the velocity stack; a 1 1/4" (32mm) gap is even better.
Recent Top Seller for this product group | |
| Velocity stack air horns improve airflow into your carburetor to increase power. This short version bolts on to Weber 45DCOE, Dellorto 45DHLA, and Mikuni 44PHH. |
| Image | Part No. | Description | Price | Stock Status |
|---|---|---|---|---|
 | ITG-ST40 | ITG "Stubby" Bolt-On Radiused Inlet for 40 DCOE, 13mm High | $27.99 | In Stock |
 | ITG-FR45-75 | $77.99 | In Stock | |
 | ITG-FR45-40 | $74.99 | In Stock | |
 | ITG-ST45 | $27.99 | In Stock | |
 | ITG-FR48-75 | $77.99 | In Stock | |
| ITG-FR48-40 | $74.99 | In Stock | |
 | ITG-ST48 | $42.99 | In Stock | |
 | ITG-FR48-SP | $67.99 | In Stock |