The MBRP Armor Pro 3-Inch Cat-Back Exhaust System with Carbon Fiber Tips (S49033CF) is a premium performance exhaust designed for the 2022–2026 Honda Civic Si and 2023–2026 Acura Integra equipped with the 1.5L turbocharged engine. Featuring high-quality T304 stainless steel construction, mandrel-bent exhaust piping, a dual split rear-exit configuration, and aggressive carbon fiber exhaust tips, this system delivers an excellent combination of improved exhaust flow, enhanced sound, durability, and motorsport-inspired styling.

Engineered to complement Honda's turbocharged L15 engine platform, the MBRP Armor Pro exhaust replaces the factory cat-back exhaust system with a larger-diameter, performance-oriented configuration. The system utilizes 3-inch main exhaust piping transitioning to a 2.5-inch dual rear-exit arrangement, helping promote efficient exhaust gas evacuation while delivering a deeper, more aggressive exhaust note.

MBRP's Street Profile sound tuning is designed to provide an ideal balance between spirited driving and everyday comfort. The exhaust produces a more pronounced performance sound under acceleration while maintaining a controlled, moderate tone during normal cruising and highway driving.

Manufactured from premium T304 stainless steel, the Armor Pro system offers excellent corrosion resistance and long-term durability. Its smooth mandrel-bent tubing helps maintain a consistent internal diameter through bends, reducing unnecessary restrictions and supporting efficient exhaust flow.

One of the standout features of the S49033CF is its pair of 4.5-inch dual-wall carbon fiber exhaust tips. Each tip combines a carbon fiber outer sleeve with a mirror-polished T304 stainless steel inner sleeve, creating an aggressive appearance that complements the rear styling of the 11th-generation Civic Si and fifth-generation Acura Integra.

The system also includes interchangeable resonated and straight-through exhaust sections, allowing enthusiasts to customize the exhaust sound. Drivers can retain the resonator for a more controlled street-oriented tone or install the supplied extension pipe for a more aggressive exhaust note.

Designed as a bolt-on upgrade, the MBRP Armor Pro exhaust utilizes factory-style mounting locations and includes the necessary installation hardware. Whether upgrading a daily-driven Civic Si, modifying an Acura Integra A-Spec, or building a turbocharged street performance vehicle, the MBRP S49033CF provides premium construction, flexible sound characteristics, and distinctive carbon fiber styling.

Features

• 3-Inch Performance Cat-Back Exhaust: Larger-diameter main piping designed to improve exhaust flow compared to the factory system.

• 2.5-Inch Dual Split Rear Exit: Dual-outlet configuration provides an aggressive appearance while maintaining vehicle-specific fitment.

• Premium T304 Stainless Steel Construction: Offers excellent corrosion resistance, durability, and long-term reliability.

• MBRP Armor Pro Series: Premium exhaust construction engineered for demanding street and performance applications.

• Street Profile Sound Tuning: Produces a deeper, more aggressive exhaust note without excessive noise during normal cruising.

• Dual Carbon Fiber Exhaust Tips: Features two premium carbon fiber outer sleeves for a distinctive motorsport-inspired appearance.

• 4.5-Inch Exhaust Tip Outlets: Large-diameter tips provide a bold appearance at the rear of the vehicle.

• Dual-Wall Exhaust Tip Construction: Combines carbon fiber outer shells with mirror-polished T304 stainless steel inner sleeves.

• Angle-Cut Exhaust Tips: Enhances the exhaust system's aggressive rear-end styling.

• Mandrel-Bent Exhaust Tubing: Maintains smooth internal pipe transitions to promote efficient exhaust gas flow.

• Improved Exhaust Efficiency: Designed to reduce unnecessary restrictions compared to the factory cat-back system.

• Interchangeable Exhaust Sections: Includes resonated and straight-through configurations for additional sound customization.

• Bolt-On Installation: Designed to install using factory-style exhaust mounting locations without cutting or welding.

• Factory Catalytic Converter Retention: Cat-back configuration retains the original catalytic converter and upstream emissions components.

• Turbocharged Engine Compatibility: Engineered for supported Honda and Acura 1.5L turbocharged applications.

• Vehicle-Specific Fitment: Designed for the 11th-generation Honda Civic Si and fifth-generation Acura Integra 1.5L Turbo.

• Limited Lifetime Warranty: Backed by MBRP's manufacturer warranty against qualifying defects in materials and workmanship.

Popular Performance Applications

• 2022–2026 Honda Civic Si Builds: Premium cat-back exhaust upgrade for the turbocharged 1.5L engine.

• 2023–2026 Acura Integra 1.5L Turbo Builds: Enhances exhaust flow, sound, and appearance on compatible Integra models.

• Daily-Driven Performance Vehicles: Street Profile tuning provides an aggressive sound under acceleration while maintaining everyday drivability.

• ECU-Tuned Applications: Complements compatible ECU tuning and supporting engine modifications.

• Turbocharged Street Builds: Larger-diameter exhaust piping helps support efficient exhaust gas evacuation.

• Intake and Exhaust Upgrades: Pairs with aftermarket intake systems and other compatible L15 performance components.

• OEM-Plus Performance Builds: Provides premium materials and a distinctive appearance while retaining factory-style fitment.

• Spirited Driving Applications: Delivers a more pronounced exhaust note during aggressive acceleration.

• Appearance-Focused Builds: Dual carbon fiber exhaust tips enhance the vehicle's rear styling.

• Performance Exhaust Replacement: Replaces the original cat-back exhaust with a premium stainless steel system.

Additional Information

• Manufacturer: MBRP
• Part Number: S49033CF
• Product Series: Armor Pro
• Product Type: Cat-Back Exhaust System
• Sound Profile: Street Profile
• Exhaust Material: T304 Stainless Steel
• Main Exhaust Tubing Diameter: 3 Inches
• Dual Rear-Exit Tubing Diameter: 2.5 Inches
• Tubing Construction: Mandrel-Bent
• Exhaust Configuration: Dual Split Rear Exit
• Exhaust Tip Quantity: 2
• Exhaust Tip Diameter: 4.5 Inches
• Exhaust Tip Style: Dual-Wall, Angle-Cut
• Exhaust Tip Outer Material: Carbon Fiber
• Exhaust Tip Inner Material: Mirror-Polished T304 Stainless Steel
• Exhaust Tip Finish: Carbon Fiber
• Installation Type: Bolt-On
• Cutting or Welding Required: No
• Catalytic Converter Included: No
• Warranty: MBRP Limited Lifetime Warranty

Exhaust Sound Information:

The MBRP Street Profile exhaust is designed to produce a moderate performance sound that becomes more aggressive under acceleration while remaining suitable for everyday street driving.

The supplied resonated and straight-through sections allow additional sound customization:

• Resonated Configuration: Helps maintain a more controlled exhaust tone during normal driving.

• Straight-Through Configuration: Provides a more aggressive exhaust note by replacing the resonated section with the supplied extension pipe.

Actual exhaust sound may vary depending on engine modifications, aftermarket front pipes, downpipes, and operating conditions.

Performance Information:

The MBRP Armor Pro system is engineered to improve exhaust flow compared to the original cat-back exhaust configuration. Actual horsepower and torque gains depend on the vehicle's engine configuration, supporting modifications, and ECU calibration.

Common Reasons for Replacement

• Restrictive Factory Exhaust: Larger 3-inch main piping helps reduce exhaust flow restrictions.

• Improved Exhaust Sound: Provides a deeper, more aggressive tone compared to the factory exhaust.

• Street-Friendly Performance: Street Profile tuning balances performance sound with daily-driving comfort.

• Turbocharged Engine Modifications: Complements compatible intake, tuning, and other performance upgrades.

• Premium Stainless Steel Construction: T304 stainless steel offers excellent durability and corrosion resistance.

• Carbon Fiber Styling: Dual carbon fiber exhaust tips enhance the vehicle's appearance.

• Exhaust Sound Customization: Interchangeable resonated and straight-through sections allow different sound configurations.

• Improved Exhaust Efficiency: Mandrel-bent piping promotes smoother exhaust gas flow.

• Damaged Factory Exhaust Components: Replaces worn or damaged factory exhaust piping and mufflers.

• Performance Street Builds: Provides a premium exhaust solution for enthusiasts seeking improved sound and styling.

• Long-Term Durability: High-quality materials and manufacturer warranty coverage make the system suitable for extended use.

Installation Notes

1. Verify Vehicle Compatibility: Confirm that the vehicle is a supported 2022–2026 Honda Civic Si or 2023–2026 Acura Integra equipped with the 1.5L turbocharged engine.

2. Allow the Exhaust to Cool: Ensure the engine, catalytic converter, and exhaust components have cooled completely before beginning installation.

3. Safely Raise and Support the Vehicle: Use an appropriate vehicle lift or properly rated jack stands to access the underside of the vehicle.

4. Inspect the Factory Exhaust: Check the original exhaust hangers, mounting hardware, front pipe connection, and surrounding components for damage.

5. Apply Penetrating Lubricant: Apply penetrating lubricant to the factory exhaust fasteners and rubber isolators to assist with removal.

6. Remove the Factory Underbody Cover: Remove the applicable fasteners securing the plastic underbody cover as directed by MBRP's installation instructions.

7. Disconnect the Factory Cat-Back Exhaust: Unbolt the original exhaust from the factory front pipe connection.

8. Remove the Factory Exhaust Assembly: Carefully disconnect the rubber isolators and remove the original exhaust system. Retain the factory rubber isolators for reuse.

9. Install the Supplied Exhaust Gasket: Position the new gasket at the factory front pipe connection.

10. Install the MBRP Front Pipe: Position the new front exhaust section and secure it using the factory flange hardware and appropriate rubber isolators.

11. Select the Desired Exhaust Configuration: Choose between the supplied resonator and straight-through extension pipe according to the preferred exhaust sound.

12. Install the Resonator or Extension Pipe: Position the selected section using the supplied 3-inch exhaust band clamps.

13. Install the Mid-Pipe: Connect the mid-pipe to the selected resonated or straight-through section.

14. Install the Y-Pipe: Connect the Y-pipe to the mid-pipe and position its hangers in the factory rubber isolators.

15. Install the Rear Exhaust Components: Position the remaining rear exhaust piping and muffler components according to the manufacturer's instructions.

16. Install the Carbon Fiber Exhaust Tips: Carefully attach the two carbon fiber exhaust tips, taking care not to damage their outer shells.

17. Align the Exhaust Tips: Adjust the exhaust outlets to ensure even positioning and proper clearance around the rear bumper.

18. Tighten All Exhaust Connections: Secure the supplied clamps and factory mounting hardware according to MBRP's installation procedures.

19. Verify Exhaust Clearance: Check clearance around the rear bumper, suspension components, heat shields, and surrounding underbody components.

20. Inspect for Exhaust Leaks: Start the engine and check all exhaust connections for leaks or abnormal noises.

21. Reinspect After Initial Use: Check exhaust alignment, clamps, and mounting hardware after the first few heat cycles.

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

Important: Carbon fiber exhaust tips should be cleaned using products suitable for their finish. Avoid abrasive cleaners, aggressive chemicals, and unnecessary exposure to excessive heat.

Exhaust modifications may affect vehicle sound levels. Always verify applicable local noise regulations and motorsport sound limits before installation.

What's Included

• (1) MBRP Armor Pro 3-Inch Cat-Back Exhaust System (S49033CF)

• T304 Stainless Steel Front Exhaust Pipe

• T304 Stainless Steel Mid-Pipe

• Resonated Exhaust Section

• Straight-Through Extension Pipe

• Rear Y-Pipe Assembly

• Rear Exhaust Piping and Muffler Components

• (2) 4.5-Inch Dual-Wall Carbon Fiber Exhaust Tips with T304 Stainless Steel Inner Sleeves

• Exhaust Band Clamps

• Exhaust Gasket

• Application-Specific Installation Hardware

Note: The factory catalytic converter and upstream exhaust components are not included or replaced. Original exhaust rubber isolators and certain factory mounting hardware are reused during installation.

Upgrade your Honda Civic Si or Acura Integra with the MBRP Armor Pro 3-Inch Cat-Back Exhaust System with Carbon Fiber Tips (S49033CF) for improved exhaust flow, aggressive performance sound, premium stainless steel construction, and distinctive motorsport-inspired styling.

Featuring mandrel-bent 3-inch T304 stainless steel main piping, a 2.5-inch dual rear-exit configuration, Street Profile sound tuning, interchangeable resonated and straight-through exhaust sections, and two premium 4.5-inch carbon fiber exhaust tips, this system delivers an excellent combination of performance, durability, appearance, and sound customization.

Whether you're building an OEM-plus daily driver, upgrading a turbocharged Civic Si, or enhancing the performance and styling of your Acura Integra, MBRP provides a premium exhaust system engineered to deliver an engaging driving experience with the quality and reliability enthusiasts expect from the Armor Pro series.