The Innovative Mounts Black Anodized Billet Engine Mount Kit (B90850-BA) is a high-performance replacement engine mounting solution designed for the 2006-2011 Honda Civic Si (FA5/FG2) equipped with compatible K-Series engines and manual transmissions. Engineered to improve drivetrain stability, reduce excessive engine movement, and enhance power delivery, this mount kit is an excellent upgrade for performance street vehicles, track builds, and high-horsepower applications.

Manufactured using precision-machined billet aluminum components with a premium black anodized finish, this kit provides exceptional strength, durability, and a clean, performance-oriented appearance. Innovative Mounts' specialized polyurethane bushings help control unwanted drivetrain movement while offering multiple stiffness options to accommodate different driving styles and performance requirements.

Unlike factory rubber and hydraulic engine mounts, which can deteriorate over time and allow excessive engine movement, the Innovative Mounts B90850-BA kit provides a more rigid and responsive mounting solution. By minimizing drivetrain movement during acceleration, deceleration, and aggressive driving, these mounts help improve shifting consistency, reduce wheel hop, and deliver a more connected driving experience.

Features

• Precision-Machined Billet Aluminum Construction: Provides excellent strength, durability, and a lightweight performance-oriented design.

• Premium Black Anodized Finish: Offers corrosion resistance and a clean, aggressive appearance that complements performance engine bays.

• Performance Engine Mount Kit: Upgrades the factory engine mounting system with stronger, performance-oriented components.

• Heavy-Duty Steel Front Mount: Provides additional drivetrain support and improved resistance to engine movement.

• Direct OEM Replacement: Designed for installation in compatible factory mounting locations without extensive chassis modifications.

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

• Reduced Wheel Hop: Helps minimize unwanted drivetrain movement that can contribute to wheel hop during hard launches.

• Performance Polyurethane Bushings: Durable polyurethane bushings provide improved drivetrain control compared to factory rubber mounts.

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

• Improved Shifting Response: Reduced drivetrain movement helps maintain more consistent engine and transmission positioning.

• CAD/CAM Engineered: Precision-designed for proper fitment, strength, and reliable performance.

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

Popular Performance Applications

• Street Performance Builds: Improves drivetrain stability and responsiveness while maintaining a balance between performance and comfort with the appropriate bushing stiffness.

• Naturally Aspirated K20Z3 Builds: Helps stabilize the drivetrain during high-RPM operation and aggressive acceleration.

• Turbocharged K-Series Applications: Reduces excessive engine movement associated with increased horsepower and torque.

• Supercharged Civic Si Builds: Provides improved drivetrain control for forced-induction applications.

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

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

• High-Horsepower K-Series Builds: Offers a stronger mounting solution for modified K-Series engines.

• K20/K24 Performance Builds: Suitable for compatible engine configurations using the required Civic Si mounting brackets and transmission.

Additional Information

• Manufacturer: Innovative Mounts
• Part Number: B90850-BA
• Product Type: Black Anodized Billet Engine Mount Kit
• Material: Billet Aluminum with Steel Front Mount
• Finish: Black Anodized Billet Aluminum
• Bushing Material: Performance Polyurethane
• Transmission Compatibility: Compatible Civic Si K-Series Manual Transmission
• Chassis Compatibility: Honda Civic Si FA5 / FG2
• Engine Compatibility: K20Z3 and compatible K-Series configurations
• Installation Type: Performance Replacement Engine Mount Kit

Available Bushing Options:

• 75A: Performance street applications with a balance of drivetrain control and vibration isolation.

• 85A: Track-oriented applications requiring increased drivetrain stability.

• 95A: Dedicated racing applications requiring maximum drivetrain control.

Higher durometer bushings provide increased drivetrain stability but may transmit additional noise, vibration, and harshness (NVH) into the vehicle.

Important Compatibility Note: This mount kit is intended for compatible Civic Si K-Series manual transmissions. It is not designed for K24 Accord, Acura TSX, or Euro R transmissions.

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 drivetrain movement during aggressive driving or higher-horsepower operation.

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

• Drivetrain Clunking: Worn or damaged engine mounts may contribute to clunking noises during acceleration, deceleration, or gear changes.

• Reduced Shifting Precision: Excessive drivetrain movement can make gear changes feel less consistent during aggressive driving.

• Forced-Induction Upgrades: Turbocharged and supercharged K-Series builds can benefit from improved engine stability.

• Track or Racing Preparation: Performance mounts help maintain more consistent drivetrain positioning under demanding driving conditions.

• Engine Bay Appearance: Black anodized billet aluminum construction provides a premium appearance compared to factory mounting components.

Installation Notes

1. Verify Vehicle Compatibility: Confirm that the vehicle is a supported 2006-2011 Honda Civic Si equipped with a compatible K-Series engine and manual transmission.

2. Confirm Transmission Compatibility: This kit is intended for compatible Civic Si K-Series manual transmissions and does not fit K24 Accord, TSX, or Euro R transmissions.

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

4. Remove Factory Mounts: Carefully remove the original engine and transmission mounting components following the appropriate factory service procedures.

5. Install Replacement Mounts: Position the Innovative Mounts billet aluminum and steel mounting components in their designated locations, ensuring proper alignment.

6. Inspect Mounting Brackets and Hardware: Verify that all mounting brackets, fasteners, and contact surfaces are compatible and in good condition.

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

8. Inspect Engine Bay Clearance: Verify proper clearance around the engine, transmission, exhaust components, hoses, and surrounding chassis components.

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

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

What's Included

• Black anodized billet aluminum engine mount assemblies

• Heavy-duty steel front mounting component

• Performance polyurethane bushings installed in the applicable mount assemblies

• Application-specific mounting brackets and hardware as supplied by Innovative Mounts

Note: Confirm the selected bushing stiffness and exact kit contents before ordering. Engine and transmission compatibility should be verified for modified or swapped applications.

Upgrade your 2006-2011 Honda Civic Si drivetrain with the Innovative Mounts Black Anodized Billet Engine Mount Kit (B90850-BA) for improved engine stability, reduced wheel hop, and more responsive power delivery. Featuring precision-machined billet aluminum construction, a premium black anodized finish, durable polyurethane bushings, and performance-oriented mounting components, this kit delivers the strength, reliability, and drivetrain control needed for everything from spirited street driving to dedicated racing applications.