Leading A-Series engine specialist since 1981
The MED aluminium stub stacks have been extensively tested on our 110 Superflow flow bench to optimise the elliptical radius on the stub stack. The result is improved air flow to the carburettor/throttle body and a proven increase in performance - on a wide range of different engines and rolling roads.
Please note - stub stacks are priced individually.
These work especially well as part of an MED Stub Stack System, which includes an ITG air filter and MED baseplate.