For removal and installation of harmonic balancers on most automotive and light truck applications.
For removal and installation of harmonic balancers on most automotive and light truck applications.
Spin the supercharger faster without affecting the accessory drive system
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Appropriate stage 2 software is required for use
Unitronic's Supercharger Pulley Upgrade effectively raises boost levels by increasing the speed in which the supercharger spins.
Spin the supercharger faster without affecting the accessory drive system
10X Entries Into Our F80 M3 Sweepstakes
Appropriate stage 2 software is required for use
This product was last offered at the strikethrough price on
08-31-2026
Also referred to as the 'relay roller'
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Contains a Supercharger Reduction Pulley and drive belt for the Audi 3.0T models
Install kit used for APR MS100035
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To be used for APR Supercharger Drive Pulley Upgrade MS100135
This product was last offered at the strikethrough price on
09-28-2026
Increases diameter of factory pulley from ~162mm to ~187mm, which in turn spins the supercharger ~15.4% faster!
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APR Stage II software is required to run any upgraded Pulley configuration and is sold separately - Pleas
This product was last offered at the strikethrough price on
09-28-2026
Includes 1310mm belt for use with 57mm or 63mm supercharger pulleys
Only for us with Fluidampr 651201C.
Larger diameter pulley increases the speed at which the supercharger spins, increasing the boost pressure output
*NOTE: This kit must be used with appropriate "Stage 2" performance software.
This product was last offered at the strikethrough price on
09-29-2026
Includes 1310mm belt for use with a 57mm supercharger pulley
Only for us with Fluidampr 651201C.
Software & installation kit not included in this upgrade kit
*For models with bolt-on style supercharger pulleys - 3.0 TFSI Performance Software is sold separately an
This product was last offered at the strikethrough price on
09-29-2026
Replace your cracked or worn belt
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
10-05-2026
Keep your drive belt tight
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
08-31-2026
Pulls pressed on 1 and 2 groove pulleys on alternators and power steering pumps.
Includes everything required to properly remove the stock supercharger pulley