Audi C7 A8/S6/S7/S8 RS6/RS7 Turbo Upgrade 4.0T

CTS Turbo's Stage 1 turbocharger upgrade for the 4.0T Audi C7 A8/S6/S7/S8/RS6/RS7 is a direct replacement for the factory units, with OEM fit to your factory turbine housing and exhaust manifold. A larger compressor wheel takes your 4.0T to a power capability of 780+ horsepower.

Brand-new, no core charge

These are brand-new turbochargers — no core charge.

Features

• Billet compressor wheels, 48.6mm inducer, 60mm-62.3mm exducer with extended tip (9-blade configuration)
• Ultra high-flow exhaust wheel (9-blade configuration)
• Upgraded thrust bearings
• Bolt-on fitment with existing exhaust manifolds
• Ideal for 4.0T owners chasing 800+ hp (with supporting mods)

Fitment

• Audi C7 S6 4.0T
• Audi C7 S7 4.0T
• Audi D4 A8 4.0T
• Audi C7 RS6 4.0T
• Audi C7 RS7 4.0T
• Audi D4 S8 4.0T

High-flow intakes, inlets and exhaust plus an upgraded cooling system are recommended. Custom tuning is required. Note: all TSB parts for turbo replacement must be installed, or warranty will not apply — proof will be required.

Backed by the CTS Turbo warranty against defects, conditional on all TSB turbo-replacement parts being installed.

Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.