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Designed for direct OEM replacement
timing retard for nitrous or boost
Replacement regulator for charging kit part # 2112-1205
1 x Meter adapter box and 1 x Zip tie (4
BIG SUCKER STAGE 1 - XL 91-UP - BLACK FILTER - BLACK COVER Primary Chain & Adjusters Designed for direct OEM replacementEach hidden breather is O ringed at the heads and exits at the mouth of the injector carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware Radius air inlet provides maximum performance by providing unobstructed airflow One piece aluminum backing plate features hidden breather technology All necessary hardware and instructions are included Will Fit '88 '90 models; breather system is not applicable for these