NST (NonStopTuning) Pulleys. Info, Specs, User Data...

[NonStopTuning]

Originally Posted by chongopants

whats the diff between the stock diameter and the underdrive/overdriver (if there is one) I am about to get an entire pully set and wanna get the most HP gain for off the line.

The Underdrive Crank Pulley is our most popular. This pulley, combined with the Alt & WP kit, offers the BEST all around performance and fuel economy for any manual or auto Yaris... n/a or turbocharged.

The CR-Lite Crank Pulley is the way to go for supercharged owners.

Reading through the many pages of this thread will explain these concepts further.

Feel free to give us a call and stop by our Houston showroom to chat further, take a look at all our products firsthand, and pick up a set if you're interested.