The Innovative Mounts Black Anodized Billet Engine Mount Kit (B90650-BA) is a high-performance replacement engine mounting solution designed for the 2002-2006 Acura RSX (DC5) and 2002-2005 Honda Civic Si (EP3) equipped with K-Series engines and manual transmissions. Engineered to improve drivetrain stability, reduce unwanted engine movement, and enhance power transfer, this billet aluminum mount kit is an excellent upgrade for street-driven performance vehicles, track builds, and high-horsepower applications.

Manufactured using precision-machined billet aluminum with a durable black anodized finish, these mounts offer exceptional strength, reduced weight, and a premium appearance. Innovative Mounts' specialized polyurethane bushings help control excessive drivetrain movement while offering multiple stiffness options to accommodate different driving styles and performance requirements.

Unlike factory hydraulic and rubber engine mounts, which can deteriorate over time and allow excessive engine movement, this performance-oriented replacement kit provides a more direct and responsive driving experience.

Features

• Precision-Machined Billet Aluminum Construction: Provides excellent strength, durability, and reduced weight compared to traditional steel mount designs.

• Black Anodized Finish: Offers corrosion resistance and a clean, performance-oriented appearance.

• Direct OEM Replacement: Designed to replace factory engine mounts on compatible Acura RSX and Honda Civic Si applications.

• Improved Drivetrain Stability: Reduces excessive engine movement during acceleration, deceleration, and aggressive driving.

• Reduced Wheel Hop: Helps minimize unwanted drivetrain movement during hard launches and spirited driving.

• Performance Polyurethane Bushings: Innovative no-tear bushing design provides improved durability and vibration control.

• Multiple Bushing Hardness Options: Available in different durometer ratings to accommodate street, track, and racing applications.

• CAD/CAM Engineered: Precision-designed and stress-analyzed for reliable performance.

• Manual Transmission Compatibility: Designed for K-Series engines equipped with compatible manual transmissions.

• Lifetime Manufacturer Warranty: Backed by Innovative Mounts' limited lifetime warranty.

Popular Performance Applications

• Street Performance Builds: Provides improved drivetrain response while maintaining a balance between performance and comfort when paired with appropriate bushings.

• Naturally Aspirated K-Series Builds: Helps stabilize the drivetrain during aggressive acceleration and high-RPM operation.

• Turbocharged K-Series Applications: Reduces excessive engine movement under increased torque and boost.

• Supercharged K-Series Builds: Offers improved drivetrain stability for higher-output forced-induction applications.

• Drag Racing: Helps reduce wheel hop and drivetrain movement during hard launches.

• Road Racing and Track Days: Improves engine stability during aggressive cornering, braking, and acceleration.

• K20/K24 Engine Builds: Suitable for compatible K-Series configurations when the required mounting components are used.

Additional Information

• Manufacturer: Innovative Mounts
• Part Number: B90650-BA
• Product Type: Billet Engine Mount Kit
• Material: Billet Aluminum
• Finish: Black Anodized
• Bushing Material: Performance Polyurethane
• Transmission Compatibility: Manual Transmission
• Chassis Compatibility: Acura RSX DC5 / Honda Civic Si EP3
• Engine Compatibility: Honda/Acura K-Series
• Mounting Configuration: Three-Piece Replacement Mount Kit

Available Bushing Options:

• 60A: Street-oriented option offering greater vibration isolation and comfort.

• 75A: Performance street option recommended for approximately 250–400 HP applications.

• 85A: Track-oriented option recommended for approximately 400–500 HP applications.

• 95A: Race-oriented option recommended for approximately 500+ HP applications.

Bushing availability and horsepower recommendations may vary by configuration. Increased bushing stiffness generally results in additional noise, vibration, and harshness (NVH).

Common Reasons for Replacement

• Worn Factory Engine Mounts: Deteriorated rubber or leaking hydraulic mounts can allow excessive drivetrain movement.

• Excessive Engine Movement: Factory mounts may struggle to control engine movement during aggressive driving or higher-horsepower operation.

• Wheel Hop During Acceleration: Upgraded mounts can help reduce drivetrain movement that contributes to wheel hop.

• Poor Drivetrain Response: Worn or overly compliant mounts can make acceleration and shifting feel less precise.

• Performance Engine Upgrades: Modified K-Series engines may benefit from stronger mounting solutions.

• Track or Racing Preparation: Performance mounts provide increased drivetrain stability under demanding conditions.

• Engine Bay Appearance: Black anodized billet aluminum construction offers a premium appearance compared to factory mounts.

Installation Notes

1. Verify Vehicle Compatibility: Confirm that the vehicle is a supported 2002-2006 Acura RSX or 2002-2005 Honda Civic Si with a compatible K-Series engine and manual transmission.

2. Support the Engine and Transmission: Properly support the drivetrain before removing the factory mounts to prevent unintended movement or damage.

3. Remove Factory Mounts: Carefully remove the original engine and transmission mounts following the appropriate factory service procedures.

4. Install Replacement Mounts: Position the Innovative Mounts components in their designated mounting locations, ensuring proper alignment.

5. Check K24 Compatibility: K24 engine applications require a compatible K20-style engine-side post mount. Verify transmission and bracket compatibility before installation.

6. Torque Mounting Hardware: Tighten all mounting hardware according to the applicable manufacturer specifications.

7. Inspect Clearance: Verify proper clearance around the engine, transmission, exhaust, hoses, and surrounding components.

8. Account for Additional NVH: Performance polyurethane mounts are stiffer than factory mounts and may transmit additional vibration into the cabin, particularly at idle.

9. Professional Installation Recommended: Installation by an experienced automotive technician is recommended to ensure proper fitment and drivetrain alignment.

What's Included

• (1) Driver-side transmission mount assembly

• (1) Passenger-side engine mount assembly

• (1) Rear engine mount assembly

• Performance polyurethane bushings installed in the mount assemblies

Note: The front engine mount is not included. The kit is compatible with the separately available Innovative Mounts 90640 front mount. Additional mounting hardware or brackets may be required depending on the application.

Upgrade your K-Series drivetrain with the Innovative Mounts Black Anodized Billet Engine Mount Kit (B90650-BA) for improved engine stability, reduced wheel hop, and more responsive power delivery. Featuring precision-machined billet aluminum construction, durable polyurethane bushings, and a premium black anodized finish, this mount kit delivers the strength, reliability, and performance needed for everything from spirited street driving to dedicated racing applications.