TGK Motorsport Billet Transmission Mount - Manual 6 Speed - Audi B8 S4/S5
TGK Motorsport Billet Transmission Mount - Manual 6 Speed - Audi B8 S4/S5
Currently Backordered — ETA: 2026-10-15Ordering will hold your place in line
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PREORDER ETA: 2026-10-15
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Overview
The factory transmission mount on the 2010–2016 Audi S4, and S5 B8 chassis — equipped with the 3.0T supercharged V6 — uses a rubber-bonded bushing that is engineered for comfort, not performance. Under hard acceleration, spirited cornering, or the added torque of a modified drivetrain, the OEM rubber deflects, shears, and eventually tears. The result is sloppy gear engagement, vague throttle response, driveline clunk, and the distinct dead-band feel that tells you power is being lost to movement that should never exist in the first place.
The TGK Motorsport Billet Transmission Mount eliminates that slop at the source. Machined from aerospace-grade 6061 billet aluminum and fitted with your choice of precision-molded polyurethane bushings, this is a direct OEM replacement that bolts in without modification and holds the transmission exactly where it belongs — under load, on track, and every mile in between.
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
| Part Number | TGK-0203-03 |
| Compatible Vehicles | 2010–2016 Audi S4, S5 B8 — 3.0T Supercharged V6 |
| Material | 6061 Billet Aluminum Housing, Polyurethane Bushings |
| Available Durometers | Street 65A, Track 80A |
| Hardware Included | Yes — all mounting hardware included |
| Warranty | Lifetime structural warranty |
Bushing Durometer Comparison
| Street 65A | Track 80A | |
|---|---|---|
| Durometer | 65A | 80A |
| NVH Transfer | Low — near OEM comfort | Moderate — firm, purposeful |
| Drivetrain Deflection | Minimal | Near zero |
| Best Use Case | Daily driver / spirited street | Track days / modified builds |
| Modified Drivetrain | Supported | Recommended |
Features & Benefits
✓
6061 Billet ConstructionAircraft-grade 6061 aluminum is machined to tight tolerances, delivering structural rigidity the stamped OEM bracket simply cannot match — no flex, no fatigue, no failure.
✓
Selectable DurometersChoose Street 65A for a daily-friendly upgrade with dramatically reduced deflection, or step up to Track 80A for near-zero bushing movement on modified B8 S4, and S5 builds pushing beyond stock torque figures.
✓
Direct OEM ReplacementEngineered to replace the factory transmission mount with zero modification — same bolt pattern, same geometry, drop-in fitment for the B8 platform whether you're running the 3.0T or 4.2L.
✓
Polyurethane BushingsPrecision-molded polyurethane resists oil, heat, and the constant compression cycles of performance driving — it will outlast OEM rubber by a significant margin and never bond-fail the way the factory unit does.
✓
All Hardware IncludedEvery bolt, sleeve, and fastener needed for a complete installation is packaged in the kit — no hardware store runs, no sourcing OEM pieces, just a clean swap from the start.
✓
Lifetime Structural WarrantyTGK stands behind the billet housing for life. If the aluminum ever cracks or fails structurally under normal performance use, we replace it — no questions, no time limits.
Frequently Asked Questions
Which durometer should I choose for my B8 S4 or S5?
If your car is primarily a daily driver — even one with a tune or intake — the Street 65A bushing delivers a meaningful improvement over the OEM rubber while keeping NVH at a comfortable level. If your B8 S4, S5, sees regular track use, the Track 80A is the correct choice. It eliminates virtually all bushing deflection under hard acceleration and gear changes.
How do I know if my OEM transmission mount needs replacing?
Common signs of a failed or torn OEM transmission mount on the B8 platform include a noticeable clunk or thud when engaging first gear or reverse, excessive drivetrain shudder under hard acceleration, vague or notchy shifter feel, and visible tearing or separation of the rubber bushing when inspected from underneath. If your car has over 60,000 miles or has been driven hard, inspection is strongly recommended.
Is this a direct bolt-on for the 3.0T with Manual Transmission engines?
Yes. The TGK Motorsport Billet Transmission Mount is designed as a direct OEM replacement for the 2010–2016 Audi S4, S5 with manual Transmissions.
Will the Track 80A bushing make my cabin noticeably harsher?
There will be a modest increase in NVH transfer compared to OEM rubber — that is the trade-off for eliminating deflection. Most drivers describe it as a firmer, more mechanical feel rather than harsh vibration. On a car already lowered, tuned, or fitted with aftermarket exhaust, the 80A is rarely perceived as intrusive. For a pure daily driver where interior refinement is the priority, the Street 65A is the better fit.
Can I replace just the bushings in my existing mount, or do I need the full TGK unit?
The TGK Billet Transmission Mount is a complete replacement assembly — billet aluminum housing and polyurethane bushings together. This is intentional. Once the OEM rubber has torn or deteriorated, the stamped steel bracket is often stressed or distorted as well. Replacing the entire mount with the TGK billet unit ensures you're starting from a known-good, precision-machined baseline rather than pressing new bushings into a compromised OEM housing.
