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SKU: TS-RDI-861
Torque Solution 05-09 Audi S4 (B7) / 03-05 Audi S4 (B6) Billet Rear Differential Mount Insert
The Torque Solution TS-RDI-861 billet rear differential mount insert replaces the factory rubber bushing in 2003-2009 Audi S4 B6 and B7 models. This direct bolt-on part sharpens power delivery by minimizing drivetrain slop for better traction and stability. Drivers experience reduced wheel hop during acceleration and improved launches on 2003-2005 B6 and 2005-2009 B7 chassis.
Key Features
- Billet 6061-T6 Aluminum Construction: Lightweight and durable material machined to precise tolerances for performance under high stress and heat.
- Black Anodized Finish: Provides corrosion resistance against road debris, heat, and wear to maintain appearance and longevity.
- Direct Bolt-On Design: Matches OEM mounting points with no modifications required for fast and easy installation.
- Wheel Hop Reduction: Stiffer design removes drivetrain play for sharper throttle response and consistent power transfer.
- Enhanced Traction: Delivers engine power directly to wheels for stronger launches and better cornering grip.
Product Notes
- Inspect differential bushings before install to ensure compatibility.
- Clean mounting surfaces thoroughly for secure adhesion.
- Packaged in protective foam for damage-free delivery.
Installation Notes
- Professional installation recommended.
- Raise vehicle securely and support differential during replacement.
- Reuse OEM hardware or Torque Solution bushings torque to 25 Nm.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2004 | Audi | S4 | Sedan B6 |
| 2003-2005 | Audi | S4 | Cabriolet B6 |
| 2005 | Audi | S4 | Sedan/Coupe B6 |
| 2005-2009 | Audi | S4 | Sedan/Coupe/Cabriolet B7 |
Why Choose Torque Solution?
- Trusted by track enthusiasts for reliable drivetrain upgrades.
- Engineered with motorsport-grade materials for daily and race use.
- CNC precision manufacturing ensures perfect fit and function.
Frequently Asked Questions
-
Q: Does this fit both B6 and B7 Audi S4 models?
A: Yes TS-RDI-861 is compatible with 2003-2005 B6 and 2005-2009 B7 S4 chassis including sedan coupe and cabriolet variants. -
Q: What material is used in this differential insert?
A: Constructed from high-strength 6061-T6 billet aluminum with black anodized finish for durability and heat resistance. -
Q: What warranty covers this product?
A: Backed by Torque Solution lifetime warranty against manufacturing defects when installed correctly.
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Compact box measures 6 x 4 x 1.5 inches
- Weight: 0.35 lbs
Differential Mounts
Differential mounts secure the differential housing to the chassis or subframe and control movement under acceleration, braking, and cornering. Stock rubber mounts isolate vibration but can deflect excessively on high-power builds, causing wheel hop, inconsistent traction, and accelerated driveshaft wear. Upgraded polyurethane or billet aluminum differential mounts sharpen throttle response and improve drivetrain consistency.Popular Differential Mount UpgradesPopular upgrades include Whiteline and SuperPro adjustable polyurethane rear differential mounts for Subaru WRX and STI, BMW E46 and E9x platforms, and Mitsubishi Evo and Eclipse AWD builds. Solid billet differential mounts are common for dedicated track cars where NVH is acceptable in exchange for maximum rigidity. Adjustable mounts allow rear differential position tuning for alignment correction on lowered vehicles.Will upgraded differential mounts cause extra noise?Firmer mounts transmit more drivetrain and road noise into t...
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Torque Solution
Welcome to the Torque Solution collection, where we specialize in high-performance products engineered to enhance your vehicle's engine performance and reliability. Our curated selection is designed for enthusiasts who demand the best in torque management and efficiency. Why Choose Torque Solution Products? Performance Enhancement: Boost your engine's power and efficiency. Durability: Crafted from high-quality materials to withstand extreme conditions. Precision Engineering: Designed for a perfect fit and optimal function. Expert Support: Our team is here to assist you with any questions and guidance. Featured Products in the Torque Solution Collection Torque Solution Engine Mounts Torque Solution Boost Controllers Torque Solution Turbo Kits Torque Solution Performance Exhausts Experience the Torque Solution Difference Upgrading your vehicle with our Torque Solution products means you are investing in quality and performance. Whether you're on the track or just driving...
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