NST FAQs
DEFINITIONS
NonStopTuning Pulley Kits
Our most popular pulleys for the Toyota Yaris, the NST Lite series is a designation used for pulleys that are light-weight versions of their OEM counterparts. All NST pulleys are built using High quality 6061-T6 aircraft aluminum and are easily 60% to 70% lighter than steel or cast iron OEM pulleys.
The NST Lite series is designed for owners looking to reduce weight and increase the throttle response of their engines. These OEM-diameter pulleys will neither underdrive nor overdrive the associated accessories, yet lead to great throttle response and improved horsepower numbers in many applications.
Our newest pulley for the Toyota Yaris, the NST Underdrive Crank Pulley increases horsepower via great weight reduction (75%) and the underdriving of accessories by roughly 10%.
Each NST Yaris Kit is carefully crafted from 6061-T6 aircraft aluminum, tested and balanced to high tolerances. Every NST pulley is hard anodized for exceptional durability and is a great item for use at the track or on the street.
Available in your choice of colors: Red or Graphite Gray.
BENEFITS WEIGHT COMPARISONS -OEM-
-NST-
Great weight reduction
- Average of 70% over OEM
Increased horsepower
- Average of 6 - 8 horsepower
Lower ET's & higher trap speeds
- Average of .20s & average of 2MPH-Crank Pulley
50 oz
13 oz
-Alternator Pulley
10 oz
- 2 oz
-Water Pump Pulley
14 oz
- 6 oz
CR-Lite
Crank Pulley10% Underdrive
Crank PulleyWP-Lite &
ALT-lite KIT