Running a smaller pulley on your supercharged LSJ will increase boost and HP. Kit includes stainless steel modular hub, allen bolts, snout plug, your choice of pulley size.

Clear anodized for a lifetime of corrosion free performance. 5 bolt design

This auction includes the 2.7" Pulley which in comparison the stock pulley size is 3.35"

This includes the proper size Stage 2 belt that replaces the stock size belt.

Smaller pulleys require larger injectors and ECU programming. So you will need to get your computer tuned with larger injectors.  You will need at least 60# injectors and some exhaust mods like a downpipe, heat exchanger, etc

By developing Ecotec specific pulleys we have run all the way down to 2.7" with out snout machining. However each snout is cast and machined differently so we only guarantee down to 2.8" without machining.

Recommended Pulley sizes based on 93 octane  (91 add .1 -  89 add .3):

3.35" pulley - Stock OEM size

3.1" pulley - 42# injectors

3.0" pulley - Stage 2 Kit, ZZP Down pipe, 93 octane.

2.9" pulley - Stage 3 Kit, 60# injectors, Dual Pass End plate, Header/Down pipe, 93 octane.

2.8" pulley - 2.9" mods, plus 75% meth or e85

2.7" pulley - Stage 3 Kit, 60# injectors, Dual Pass End plate, Header/Downpipe, Stage 1+ cams

2.6" pulley - Stage 3 Kit, 60# injectors, Dual Pass End plate, Header/Down pipe, Stage 1+ cams, Ported Head

Premium fuel required on supercharged cars!!!! Failure to run premium will damage your engine.

Lightning fast Same Day Shipping means you won't be waiting and waiting to be up and running.

Email if you need more information.

 $8 for shipping within the U.S.'s 48 states.  Canadian Customers add $12 for USPS Priority Mail.  Only PayPal payments accepted.

Thanks for looking.