Who Makes The Best Lightweight Pulleys & Why?

Need new pulleys? We've dedicated more than 15 years to perfecting THE Best Lightweight Pulleys you can buy & we SHIP them Free Of Charge & Fast AF! 

Why are NonStopTuning Pulleys better than the competition?

• International Industry Leader Since 2005
• Each NST Pulley Is Approximately 70% Lighter Than OEM
• Dyno Tested & Proven Horsepower & Torque Gains
• Better Throttle Response & Efficiency (better mpg)
• Most Kits Include Three Pieces (crank, alternator, water pump)
• All NST Pulleys Are Anodized For Extra Strength & Durability
• All Items Covered By One Year Warranty
• More than 25,000 Customers Served Since 2005

AVERAGE WEIGHT COMPARISONS

- OEM Crank Pulley 70 oz | 2 kg
- NST Crank Pulley 14 oz | 400 g

- OEM Water Pump Pulley 16 oz | 450 g
- NST Water Pump Pulley 6 oz | 170 g

- OEM Power Steering Pulley 16 oz | 450 g
- NST Power Steering Pulley 6 oz | 170 g

- OEM Alternator Pulley 10 oz | 285 g
- NST Alternator Pulley 3 oz | 85 g

PERFORMANCE BENEFITS

Weight Reduction
- Approximately 70% - 75% vs OEM

Dyno Proven Horsepower & Torque
- Average of 7-10 horsepower & torque

Better Throttle Response & Fuel Economy
- Smoother operation and higher MPG ​

​Ongoing Research & Development
- visit the DYNO page of our website!

​MORE COLORS THAN THE COMPETITION

• Standard Color: RED
• ​Red, Blue, Purple, Gold, Black
• Anodized For Strength & Durability

​BETTER THAN THE COMPETITION SINCE 2005

• 70-75% weight reduction vs OEM while just as strong/stronger
  (OEM is cast iron, NST is CNC machined and will never corrode)
• Anodizing on NST pulleys makes the aluminum stronger
  (cheaper bare aluminum {silver/billet} pulleys are softer than NST)
• NST crank pulleys have oil sleeves on the back when necessary
  (most other brands do not offer this very important feature)
• NST crank pulleys have proper timing marks on the edge of pulley
  (we're one of very few companies to offer this important feature)

DYNO RESULTS ACROSS VARIOUS PLATFORMS - full list available on our dyno page

2011 Scion tC 
Max WHP from 142 to 147, massive increase of +20 whp @ 4,100 rpm.
Max WTQ from 135 to 151, massive increase of +25 wtq @ 4,100 rpm.

2005 Infiniti G35 / 350Z
Max WHP from 227 to 232, very nice shift in the mid range; consistent 10+ horsepower gains in the middle of the powerband. Max WTQ increase from 220 to 232.

2009 BMW 335i
Up 9 WHP & 14 WTQ. Gains are present at low, mid, and high rpm. Very impressive gain of +20 whp and +20 wtq is clearly visible at 6,000 rpm.

NST - NonStopTuning
www.NonStopTuning.com