The CTS Stage 1 turbocharger upgrade has been developed for the 4.0T engine in the Audi C7 and C7.5 A8 D4, S6, S7, S8 D4, RS6 and RS7. They are direct replacements for the original turbochargers, with an OEM fit to the original turbine housing and the original exhaust manifold.
The turbocharger upgrade features a larger compressor wheel, giving the 4.0T a power output of 780+ hp. There is no deposit required on trade-ins: these are brand-new turbos.
Please note: all TSB parts for turbo replacement must be fitted; otherwise, the warranty will not apply. Proof of this is required. High-flow intakes, inlets and exhaust, as well as an upgraded cooling system, are required. Custom tuning is required; most customers opt for the dyno Spectrum DS1 tuning platform.
Features
- Billet compressor wheels, 48.6 mm inducer, 60 mm to 62.3 mm exducer with extended tip (9-blade configuration)
- Ultra-high-flow discharge impeller (9-blade configuration)
- Upgraded pressure bearings
- bolt-on fit with existing exhaust manifolds
- Suitable for 4.0T owners seeking 800+ hp (with supporting modifications)
- direct replacement with OEM fitment on the original turbine housing and exhaust manifold
- Brand-new turbos, no deposit on trade-ins
- Power output of 780+ hp
Technical specifications
- compressor wheel: billet, 48.6 mm inducer, 60 mm to 62.3 mm exducer with extended tip, 9 blades
- exhaust wheel: ultra-high-flow, 9 blades
- Bearing assembly: upgraded pressure bearings
- Power output: 780+ hp
- Weight: 20.9 kg
Contents of the set
- CTS Stage 1 turbocharger upgrade 4.0T
- Installation instructions
Frequently asked questions
How much power can these turbos handle?
The larger compressor wheel gives the 4.0T a power capacity of 780+ hp. For 800+ hp, supporting modifications are required.
What additional parts are required?
High-flow intakes, inlets and exhaust, and an upgraded cooling system are required. Custom tuning is also required; most customers opt for the dyno Spectrum DS1 tuning platform.
Do I need to hand in an old part?
No. These are brand-new turbos and there is no deposit on trade-ins.
What do I need to bear in mind regarding the warranty?
All TSB parts for turbo replacement must be fitted; otherwise, the warranty will not apply. Proof of this is required.
