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Last Post 04 Aug 2016 11:05 AM by  ClubSport
STL MX-5 Question
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New Member
New Member

06 Apr 2016 10:18 AM
    06 and up MX-5 with the factory 2 liter MZR motor, I just want to verify I'm reading the rules correctly. You need to use a 55mm RP and are able to convert to the acura throttle body if desired. Has the RP always been in this rule set or is this something new?
    New Member
    New Member

    04 Aug 2016 11:05 AM
    All 2 liter engines will receive some type of restrictor in STL, that is a CRB decision. Since the MZR isn't as potent as the K20, it gets a bigger restrictor than the K20.
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