Looking at pixs of mine and Sirnixalots front mounts side by side, they look almost the same size.
The whole kit weighed 15kg, not the core on it's own (just over 5-6kg I think).
The metal for the forge pipe run is stainless steel not aluminium, therefore alot heavier than I was expecting.
The samco hoses also weigh just short of .5kg each ( 7 bends although 1 pipe is 3 joined together, so 4.5kg approx)
The 14 :shock: jubilee clips weighed about 1kg
The stainless stell accounts for the rest.
Nad swap you formulae
Engine Volumetric Flow (100% volumetric efficiency)
Voulme of air (cu ft/min)= engine rpm x engine cid (cubic inches)/3456
What's your formula?