B9 S4/S5/SQ5

Audi B9 OEM Turbo T51R Mod

Made to Order

Standard lead time: ~2 weeks

Available Options

Option 1 — $399 (Send-In Service)

Send us your turbocharger housing and we will machine it in-house and install the T51R modification. Once completed, your housing will be shipped back to you.

• Approximate turnaround: 2 weeks

• Shipping address will be provided on your email receipt/invoice after purchase

Option 2 — $799 (Modified Housing Provided)

Purchase a pre-modified housing directly from us. We will ship a finished housing that you can install at your convenience.

• $300 rebate available when you return your removed housing

• Core must be returned within 30 days of receiving your housing

Description

The T51R Mod increases the audible turbo characteristics of the OEM turbocharger, producing the aggressive sound commonly associated with large top-mount turbo setups or turbo diesel vehicles.

This modification is designed to enhance sound while maintaining OEM functionality.

• No retune required

• No supporting modifications required

For maximum sound, we recommend installing an aftermarket turbo inlet.

OEM inlet pipes are designed to reduce turbo noise and may slightly dampen the effect of this modification.

If purchasing our provided housing option, you may receive OEM or aftermarket housings depending on current inventory availability.

compatibility:

2018 - 2025 Audi S4, S5 Coupe, S5 Cabriolet, S5 Sportback, A8, QT, SQS, SQS Sportback

3.0T V6 (CWGD)

Disclaimer

For off-road/racing use only where applicable. Customer assumes responsibility for proper installation and tuning. DaddyTurbos is not responsible for engine or turbocharger damage resulting from improper installation, oiling issues, foreign object damage, or misuse.