Stub Stack ram pipe to fit the SU HIF44 carburettor. 
 
Designed based on performance specifications outlined in the 'Tuning The A-Series Engine' book.
 
Standard version can be used standalone, or will fit inside centre hole/mount air filters.
Also avilable as a version to fit offset hole pancake/oval air filters. 
 
Manufactured in a durable carbon fibre material.