Street Demon 625 Calibration Kit

The exact metering rods, jets, and step–up springs to fine-tune your application

PART# 1921

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625 Street Demon® calibration kits feature an assortment of metering rods, jets and step-up springs to fine tune to your application.


  • Primary main jet assorment of .074, .076, .080 and .082
  • Secondary main jet assortment of .078 and .082
  • Metring rod assortment of .056/.048, .058/.050, .058/.052, .060/.050, .062/.054 and .064/.056
  • Step-Up spring assortment of orange, blue, yellow and silver springs
  • Hard yellow storage case


Emission Code5
Product TypeStreet Demon Calibration Kit
WarrantyLimited 90 Day
Part Number1921


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Warranty Information

Limited 90 Day: See Details
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        *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

        Some parts are not legal for use in California or other states with similar regulations.