CTS Turbo is proud to release our early model (before 2016) B8/B8.5 S4, S5, Q5, SQ5; C7/C7.5 A6, A7, Q7 3.0T Supercharger Pulley Upgrade Kit.


CTS pulley is smaller diameter than stock. Stock pulley size is 63.25, the CTS pulley is 57.3mm; it will increase the speed at which the supercharger spins and will increase the boost pressure output.  Increased boost pressure in conjunction with upgraded ECU software results in a dramatic increase in horsepower and torque throughout the entire powerband. This will not increase stress or excessive wear on supercharger or engine components.

NOTE: CTS Supercharger Pulley Upgrade Kit must be used with appropriate “Stage 2” performance software.
Stage 2 performance software (not included) will allow you to achieve maximum boost and power from your 3.0T S/C engine while safely optimizing air fuel ratios, timing, and boost pressure bleed off.

Most stage 2 software is compatible with this kit. Contact your tuner for compatibility.

Stock pulley size: 63.20mm

CTS pulley size: 57.30mm

Product Details

  • Made in house at CTS Turbo in Canada
  • Precision CNC machined from billet ASI303 stainless steel – best on the market! No other pulley manufacturer uses this steel.
  • OEM-spec honing and tolerances
  • Boost increased from stock 11psi to 15psi, boost holds steady all the way up to redline
  • Nitride coated for long-lasting OEM looking finish
  • Includes belt required for install
  • Stock Size: 63.25mm, CTS Size: 57.3mm

Optional Equipment

  • CTS B8 3.0T Supercharger Pulley Installation Kit (for removing OE Pulley or CTS Pulley)

Fitment on vehicles with press-on style pulley:

  • B8/B8.5 Audi S4, S5, Q5, SQ5 with 3.0T SUPERCHARGED engine (before 2016)
  • C7/C7.5 Audi A6, A7 with 3.0T SUPERCHARGED engine (before 2016)
  • Audi Q7 with 3.0T SUPERCHARGED engine (before 2016)



Download the installation guide: Here