Stage I
Banned
Joined: May 2005
Posts: 14,496
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RE: Stage I
Take a look here https://www.hdforums.com/m_153730/tm.htm It lets your engine breathe easier.
Check out the rest of the forum while you are there too.
Check out the rest of the forum while you are there too.
Road Captain
Joined: Sep 2005
Posts: 717
Likes: 3
From: IN
RE: Stage I
the stg 1 kit is a new better breathing air filter and a restrictor type plate behind the filter. thus more air. you will also need to re-jet or get a re-map (HD download) with my bike i gained about 10 hp with the stg 1 kit, pipes and HD race tuner.
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