TGK Motorsport Billet Transmission Mount - ZF 8 Speed - C7 A6/RS6/A7/RS7
TGK Motorsport Billet Transmission Mount - ZF 8 Speed - C7 A6/RS6/A7/RS7
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PREORDER ETA: Early/Middle of November
This Product is currently available as a preorder!
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Overview
The factory transmission mount on the 2013–2018 Audi A6, RS6, A7, and RS7 C7 chassis relies on a rubber bushing that is engineered primarily for ride comfort — not performance. Under the sustained torque loads of the 3.0T supercharged, 4.0L twin-turbo V8, and 3.0L TDI powerplants, the OEM rubber fatigues, tears, and compresses unevenly. The result is excessive drivetrain slop, inconsistent throttle response, and in many cases outright mount failure that allows the transmission to shift position under hard acceleration — introducing misalignment stress into the driveshaft and differential.
The TGK Motorsport Billet Transmission Mount eliminates this failure point entirely. CNC-machined from aircraft-grade 6061 billet aluminum, it replaces the entire OEM mount assembly and accepts selectable polyurethane bushings in Street (65A) or Track (80A) durometer — so you tune compliance to your build, not the other way around. It installs in OEM bolt locations with zero modification required, and comes backed by a lifetime structural warranty.
Disclaimer
What is NVH?
NVH stands for Noise, Vibration, and Harshness — the term used to describe how much engine movement, sound, and road feel is transmitted into the cabin of your vehicle. Stock mounts are designed to absorb and isolate these sensations. Aftermarket mounts are built with performance in mind, which changes that balance.
What to expect with aftermarket mounts
Increased vibration in the cabin
You will likely feel more engine vibration through the steering wheel, seats, floor, and gear shifter — especially at idle. This is normal and expected. The stiffer the mount, the more noticeable this becomes.
Improved performance and engine control
The trade-off for increased NVH is a more direct connection between you and the drivetrain. Engine movement is reduced, which improves throttle response, shift feel, and power delivery under hard acceleration.
Is this right for you?
Aftermarket mounts are well-suited for track use, spirited driving, or vehicles already modified for performance. If your vehicle is primarily used for daily commuting and passenger comfort is a priority, a stock or OEM-spec replacement may be a better fit. We're happy to help — reach out before purchasing.
By purchasing and installing aftermarket mounts, you acknowledge that increased NVH is an inherent and expected characteristic of performance components and does not constitute a warranty claim. Installation is at your own discretion. Always consult a qualified technician for proper installation.
Specifications
| Compatible vehicles | 2013–2018 Audi A6 / RS6 / A7 / RS7 C7 | 3.0T, 4.0L TFSI, 3.0L TDI |
| Material | 6061 billet aluminum housing; polyurethane bushings |
| Available durometers | Street 65A / Track 80A |
| Hardware included | Yes |
| Warranty | Lifetime structural warranty |
Choose Your Durometer
| Street 65A | Track 80A | |
|---|---|---|
| Durometer | 65A | 80A |
| NVH / Cabin Feel | Low - Moderate | Moderate — High |
| Drivetrain Compliance | Minimal | Near-rigid — maximum positional control |
| Best for | Daily driver / weekend canyon runs | Track days / high-power builds |
Features & Benefits
✓
6061 Billet ConstructionCNC-machined from aerospace-grade 6061 aluminum for a housing that will never crack, compress, or fatigue — outlasting the lifespan of the vehicle itself.
✓
Selectable Durometer BushingsChoose 65A polyurethane for daily-driven A6, A7, and S6 applications or step up to 80A for RS6, RS7, and track-prepped C7 chassis — one mount, two performance personalities.
✓
Direct OEM ReplacementBolt-in fitment to factory transmission mount locations on all 2013–2018 C7 Audi models. No cutting, no welding, no adapter plates — just remove the OEM piece and install.
✓
Eliminates Torn Bushing FailurePolyurethane is chemically and mechanically resistant to the oil contamination, heat cycling, and shear forces that routinely destroy the stock rubber bushing on high-torque 3.0T and 4.0L V8 platforms.
✓
Sharper Throttle ResponseReducing transmission movement under load tightens the mechanical link between your throttle input and rear wheel output — particularly noticeable in RS6, and RS7 applications with ECU tunes.
✓
Lifetime Structural WarrantyEvery TGK Motorsport billet mount ships with a lifetime structural warranty. We engineer these to last — and we stand behind that commitment unconditionally.
Frequently Asked Questions
Which durometer should I choose for my 2013–2018 Audi A6 or A7 used as a daily driver?
The Street 65A polyurethane bushing is the right choice for daily-driven A6 and A7 C7 applications. It dramatically outperforms the stock rubber bushing in terms of durability and precision, while keeping NVH (noise, vibration, harshness) at a level that remains comfortable for everyday use. If your car is primarily a commuter or occasional canyon carver, the 65A delivers the upgrade without a significant change in cabin character.
Will the 80A Track bushing cause excessive vibration in an RS6 or RS7 used on the street?
The 80A bushing is firmer and will transmit more drivetrain vibration into the cabin compared to OEM or the 65A option.
How do I know if my OEM transmission mount bushing is torn or failed?
Common symptoms of a failed OEM transmission mount on the C7 Audi platform include a noticeable clunk or thud during hard acceleration or deceleration, a rubbery or vague feeling in throttle response, visible cracking or tearing of the rubber bushing on inspection, and in severe cases a visible shift in transmission position relative to the tunnel. These symptoms are especially prevalent on higher-mileage S6, S7, RS6, and RS7 models where the torque output accelerates bushing wear significantly.
Does this mount fit both the 3.0T supercharged and the 4.0L twin-turbo V8 C7 models?
Yes. The TGK Motorsport Billet Transmission Mount is designed to fit all 2013–2018 Audi C7 platform vehicles including the 3.0T supercharged A6, A7; the 4.0L twin-turbo RS6 and RS7; and the 3.0L TDI diesel variants. All share the same transmission mount location and bolt pattern on the C7 chassis. Hardware for all fitments is included in the box.
How does the TGK Motorsport mount compare to other aftermarket transmission mounts for the C7 Audi platform?
The TGK Motorsport Billet Transmission Mount is machined from 6061 billet aluminum — a material specification that delivers superior stiffness-to-weight ratio and corrosion resistance compared to cast or fabricated steel alternatives. Critically, we offer selectable durometer polyurethane bushings, meaning you are not locked into a single compliance level. Combined with our direct OEM bolt-in fitment, full hardware inclusion, and a lifetime structural warranty, the TGK mount is engineered to be the definitive solution for the C7 A6, RS6, A7, and RS7 platform.
