Acura Integra 1989-1993 Exhaust Specifications
Detailed technical specifications and guidelines for the exhaust system of the 1989-1993 Acura Integra. Includes exhaust manifold, catalytic converter, muffler, tailpipe, and installation instructions.
1989-1993 Acura Integra Exhaust System Specifications Specifications
This document provides a comprehensive overview of the exhaust system specifications for the 1989-1993 Acura Integra. It includes detailed technical information, key components, and performance metrics. Use this guide to identify original equipment specifications, understand system components, and reference key measurements for maintenance or upgrades.
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To find specific information, use the search functionality to look for keywords such as 'muffler size', 'catalytic converter', or 'exhaust pipe diameter'. Narrow down results by focusing on relevant sections.
Navigate through the document by exploring the major sections listed in the table of contents. Each section provides detailed subsections with specific technical points. Use the quick reference section for fast access to key specifications.
Key Specifications
Exhaust System Type
Dual-exhaust with catalytic converter
Muffler Size
20" x 8" x 4"
Catalytic Converter Type
Two-way ceramic honeycomb
Exhaust Pipe Diameter
2.25 inches
Back Pressure (Stock)
8-10 psi
Available Specifications
Exhaust System Overview
This section provides a general overview of the exhaust system, including its primary components and functions. It serves as a foundational guide for understanding the system's layout and operation.
Exhaust System Overview
This section provides a general overview of the exhaust system, including its primary components and functions. It serves as a foundational guide for understanding the system's layout and operation.
System Components
- Exhaust manifold
- Catalytic converter
- Intermediate pipe
- Muffler
- Tailpipe
- Heat shield
System Function
- Reduces exhaust emissions
- Minimizes noise levels
- Improves engine performance
- Protects engine from back pressure
- Directs exhaust gases away from the vehicle
Exhaust Pipe Specifications
This section details the technical specifications of the exhaust pipes, including sizes, materials, and bends. Use this information for repairs or custom exhaust system fabrication.
Exhaust Pipe Specifications
This section details the technical specifications of the exhaust pipes, including sizes, materials, and bends. Use this information for repairs or custom exhaust system fabrication.
Pipe Dimensions
- Front pipe diameter: 2.25 inches
- Intermediate pipe diameter: 2.25 inches
- Tailpipe diameter: 2.25 inches
- Bend radius: 4 inches
- Length of front pipe: 24 inches
- Length of intermediate pipe: 36 inches
Materials
- Aluminized steel
- Stainless steel (optional aftermarket)
- Heat-resistant coatings
- Welded joints
- Flexible sections for vibration reduction
Muffler and Catalytic Converter
This section provides specifications for the muffler and catalytic converter, including sizes, types, and performance metrics. Use this information for replacement or upgrade purposes.
Muffler and Catalytic Converter
This section provides specifications for the muffler and catalytic converter, including sizes, types, and performance metrics. Use this information for replacement or upgrade purposes.
Muffler Specifications
- Muffler type: Straight-through design
- Muffler size: 20 inches (length) x 8 inches (width) x 4 inches (height)
- Internal chamber: Dual-chamber
- Sound level: 85 decibels
- Material: Aluminized steel
Catalytic Converter Specifications
- Converter type: Two-way catalytic converter
- Size: 6 inches (length) x 4 inches (width)
- Substrate: Ceramic honeycomb
- Flow rate: 100 CFM
- Emissions reduction: 90% efficiency
Exhaust System Performance
This section outlines the performance metrics of the exhaust system, including flow rates, back pressure, and sound levels. Use this data for tuning or upgrading the system.
Exhaust System Performance
This section outlines the performance metrics of the exhaust system, including flow rates, back pressure, and sound levels. Use this data for tuning or upgrading the system.
Flow Rates
- Maximum flow rate: 120 CFM
- Idle flow rate: 50 CFM
- Increase in flow rate with aftermarket systems: 20-30%
- Recommended flow rate for high-performance applications: 150 CFM
Back Pressure
- Stock back pressure: 8-10 psi
- Reduced back pressure with high-flow catalytic converter: 5-7 psi
- Ideal back pressure for turbocharged applications: 10-12 psi
- Maximum recommended back pressure: 15 psi
Exhaust System Maintenance
This section provides guidelines for maintaining the exhaust system, including inspection intervals, cleaning procedures, and replacement schedules.
Exhaust System Maintenance
This section provides guidelines for maintaining the exhaust system, including inspection intervals, cleaning procedures, and replacement schedules.
Inspection and Maintenance
- Inspect exhaust system every 12,000 miles
- Check for leaks, rust, or damage
- Clean exhaust system components every 24,000 miles
- Replace gaskets and seals every 50,000 miles
- Replace muffler and catalytic converter every 80,000 miles
Cleaning Procedures
- Use wire brush to remove surface rust
- Apply high-temperature cleaning solution
- Avoid using abrasive materials that can damage coatings
- Dry components thoroughly after cleaning
- Inspect for damage after cleaning
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Component Specifications
Overview
- Type
- Dual Exhaust System
- Configuration
- Front-Wheel Drive (FWD) Layout
- Platform
- DA Chassis
- Material
- Stainless Steel
- Location
- Rear-Mounted Muffler
Dimensions
- Exhaust Pipe Diameter
- 2.00 in (50.8 mm)
- Muffler Size
- 5.00 x 8.00 x 12.00 in (127 x 203 x 305 mm)
- Tailpipe Diameter
- 2.00 in (50.8 mm)
- Resonator Size
- 1.75 in (44.45 mm)
- Catalytic Converter Size
- 5.00 x 4.00 x 3.00 in (127 x 102 x 76.2 mm)
- Exhaust Tip Diameter
- 3.00 in (76.2 mm)
- Total System Length
- 13.00 ft (3.96 m)
Materials
- Exhaust Pipes
- Stainless Steel (Grade 304)
- Muffler And Resonator
- Aluminized Steel
- Catalytic Converter
- Ceramic Substrate with Stainless Steel Housing
- Exhaust Tips
- Polished Stainless Steel
Features
- Performance Features
-
- Dual Exhaust System for Increased Power
- Mandrel-Bent Pipes for Smooth Flow
- Low Restriction Muffler Design
- Sound Features
-
- Chambered Muffler Design for Reduced Drone
- Straight-Through Resonator for Optimal Flow
- Aggressive Exhaust Note
- Durability Features
-
- Stainless Steel Construction for Longevity
- Aluminized Steel Components for Heat Resistance
- Welded Joints for Strength and Leaks Prevention
- Emissions Features
-
- High-Flow Catalytic Converter
- EPA and CARB Compliant
- Integrated Exhaust Gas Recirculation (EGR) System
- Heat Management Features
-
- Heat Shields on Muffler and Resonator
- Thermal Insulation on Exhaust Pipes
- Double-Walled Exhaust Tips for Heat Reduction
Safety Features
- Leak Protection
-
- Sealed Welded Joints
- Flanged Connections with Gaskets
- Spring-Loaded Clamp Connections
- Heat Shields
-
- Muffler Heat Shield
- Resonator Heat Shield
- Catalytic Converter Heat Shield
- Exhaust System Protection
-
- Rubber Isolated Mounting Points
- Flexible Exhaust Hangers
- Protected Routing Under the Vehicle
Comfort Features
- Noise Reduction Features
-
- Chambered Muffler Design
- Resonator for Sound Cancellation
- Damped Exhaust Pipes
- Smooth Operation Features
-
- Straight-Through Exhaust Path
- Mandrel-Bent Pipes for Smooth Flow
- Low Backpressure Design
- Corrosion Resistance Features
-
- Stainless Steel Construction
- Aluminized Steel Components
- Protective Coatings on All Components
Accessories
- Exhaust Tips
-
- Polished Stainless Steel Tips
- Chrome-Plated Tips
- Black Powder-Coated Tips
- Performance Upgrades
-
- High-Flow Catalytic Converter
- Performance Muffler Upgrade
- Exhaust System Coating
- Hardware And Kits
-
- Exhaust Gasket Kit
- Mounting Clamp Kit
- Exhaust System Hardware Kit
Maintenance
- Service interval
- Every 15,000 miles (24,140 km) or 15 months
- Service Items
-
- Inspect Exhaust System for Leaks
- Check Exhaust Mounts and Hangers
- Tighten All Exhaust System Connections
- Inspect Muffler and Resonator for Damage
- Clean or Replace Exhaust Tips if Necessary
- Maintenance Notes
- Avoid using harsh chemicals or high-pressure washes on the exhaust system. Inspect the system annually for signs of rust or damage.
Warranty
- Basic Warranty
- Miles: 36,000 milesYears: 3 yearsCoverage: Exhaust System Components
- Powertrain Warranty
- Miles: 60,000 milesYears: 5 yearsCoverage: Catalytic Converter and Muffler
- Emissions Warranty
- Miles: 80,000 milesYears: 8 yearsCoverage: Catalytic Converter and Emissions-Related Components
- Corrosion Warranty
- Miles: 100,000 milesYears: 10 yearsCoverage: Exhaust System Corrosion Perforation
Production Details
- Manufacturer
- Acura
- Manufacturing Process
-
- CNC Mandrel Bending
- Robotically Welded Joints
- Precision Cutting and Forming
- High-Temperature Coating Application
- Quality Control
- inspection: Visual and Pressure TestingTesting: Leak and Flow TestingCertifications: EPA and CARB Certified
- Sustainability Practices
-
- Recyclable Materials
- Low Emission Manufacturing Process
- Energy-Efficient Production Line
- Production Metrics
- Weight: Approx. 40 lbs (18 kg)Manufacturing Time: Approx. 2 hours per unitProduction Volume: Approx. 10,000 units per year
Service Information for Exhaust System Service
Maintenance and service requirements specific to the exhaust system of the 1989-1993 Acura Integra
- Inspect exhaust system for leaks or damage
- Check exhaust mounts and hangers for wear
- Tighten all exhaust system connections
- Inspect muffler and resonator for signs of rust or damage
- Clean or replace exhaust tips if necessary
Perform a visual inspection and ensure all connections are secure. Address any leaks promptly to avoid further damage.
- Inspect catalytic converter for efficiency
- Check exhaust gas recirculation (EGR) system
- Clean or replace exhaust system heat shields
- Inspect exhaust pipes for signs of rust or damage
- Check exhaust system performance
Use specialized tools to inspect the catalytic converter and EGR system. Ensure proper function to maintain emissions compliance.
- Replace exhaust system gaskets
- Inspect and replace exhaust mounts if necessary
- Clean or replace muffler and resonator
- Inspect catalytic converter for replacement
- Perform exhaust system performance test
Major service interval. Replace worn or damaged components to ensure optimal performance and reliability.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the exhaust pipe diameter for the 1989-1993 Acura Integra?
What is the exhaust pipe diameter for the 1989-1993 Acura Integra?
The exhaust pipe diameter for the 1989-1993 Acura Integra is 1.75 inches (44.45 mm) for the standard trim models. GS-R models may feature a slightly larger diameter of 2 inches (50.8 mm) for improved performance.
Q2 What type of catalytic converter is used in the 1989-1993 Acura Integra?
What type of catalytic converter is used in the 1989-1993 Acura Integra?
The 1989-1993 Acura Integra uses a two-way catalytic converter with a ceramic honeycomb substrate. It is designed to reduce hydrocarbons (HC) and carbon monoxide (CO) emissions. The converter is located in the mid-section of the exhaust system.
Q3 What is the recommended torque specification for exhaust manifold bolts?
What is the recommended torque specification for exhaust manifold bolts?
The recommended torque specification for the exhaust manifold bolts on the 1989-1993 Acura Integra is 23-25 ft-lbs (31-34 Nm). Ensure the bolts are tightened in a crisscross pattern to avoid warping the manifold.
Q4 How often should the exhaust system be inspected?
How often should the exhaust system be inspected?
The exhaust system should be inspected every 12 months or 12,000 miles, whichever comes first. Look for signs of rust, cracks, or leaks, particularly at the joints and hangers. Pay special attention to the muffler and catalytic converter.
Q5 Can I replace the stock muffler with an aftermarket performance muffler?
Can I replace the stock muffler with an aftermarket performance muffler?
Yes, you can replace the stock muffler with an aftermarket performance muffler. However, ensure the replacement muffler is compatible with the 1.75-inch exhaust pipe diameter and meets local emissions regulations. Improper installation may void your vehicle's warranty.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Acura Integra Exhaust System Service Manual
Coming SoonOfficial service manual for the 1989-1993 Acura Integra exhaust system, including detailed diagrams, torque specifications, and repair procedures.
Catalytic Converter Replacement Guide
Coming SoonStep-by-step guide for replacing the catalytic converter on the 1989-1993 Acura Integra, including safety precautions and tools required.
Exhaust System Maintenance Tips
Coming SoonComprehensive guide on maintaining the exhaust system, including inspection intervals, common issues, and preventive measures.
Performance Exhaust Upgrades
Coming SoonInformation on upgrading to a performance exhaust system, including compatibility, benefits, and installation tips for the 1989-1993 Acura Integra.
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