Intake Rubber (USA SPEC)
The USA Intake Rubber is very restricted!!  The hole is exactly 12mm it the end nearest the engine.  I will be ordering a UK SPEC Intake Rubber from Terry at Taffspeed Racing very soon.  I would think that with a 12mm restriction I will stand to gain some accelerationa as well as top end.  I will post the differences in the two after I get the UK  Rubber in a few weeks.
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