The ultimate velocity stack for your vintage British sports car with 1.75" SU carbs.  Because a filter will not fit over these carbs, they are strictly a performance / racing part.  The bell is manufactured from precision spun aluminum and electron beam welded to the base for a very strong, nearly homogenous joint.

Our stacks differ slightly from others on the market and the development behind them is different, with the original curve profile lifted from a Cosworth velocity stack and scaled in size for the 1.75" SU carb.  At the apex of the major curve, our stack does not have a noticeable peak, but is continuously smooth for the most optimum airflow.