Keep your accessories running properly with a new tensioner and drive belt in this accessory drive belt service kit
Keep your accessories running properly with a new tensioner and drive belt in this accessory drive belt service kit
Spin the supercharger faster without affecting the accessory drive system
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Appropriate stage 2 software is required for use
Larger diameter crank pulley & smaller supercharger 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
Larger diameter crank pulley & smaller supercharger 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
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
Does not include securing hardware
For Bosch style alternators
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
Keep your car from breaking down by replacing your cracked drive belt
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This product was last offered at the strikethrough price on
05-02-2026
Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt.
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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.