RE: pipe resistance
Correction on post dated 9/2/11 by NailHead:
The following quoted text was incorrect - my bad.
>I went with the brown / white o-ring
>combo that Maston's is recommending.
The new o-rings from Maston's arrived today and the
correct color description should have been brown and orange.
Now for dimensions - it's the same as the green OEM o-rings
that shipped with the manifold.
Brown = 3.5mm thick; 21mm ID; 28mm OD
(this thicker brown one inserts in the housing)
Orange = 3.0mm thick; 22mm ID; 28mm OD
(this thinner orange one slips onto the header)
Part numbers: #212V and #212S