Acura Integra 1985-1989 Exhaust Specifications
Comprehensive technical specifications for the 1985-1989 Acura Integra exhaust system, including detailed part descriptions, torque values, and installation instructions.
1985-1989 Acura Integra Exhaust Specifications Overview Specifications
This document provides detailed specifications and technical information for the exhaust system of the 1985-1989 Acura Integra. It covers key components, dimensions, materials, and performance metrics. Use this guide to identify original equipment specifications, understand system design, and assist with maintenance or upgrades. Navigate through sections for comprehensive details or refer to the quick reference for key specifications.
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Key Specifications
Exhaust System Type
Dual exhaust with Y-pipe
Muffler Diameter
6 inches
Tailpipe Diameter
2.25 inches
Catalytic Converter Type
Two-way catalytic converter
Header Diameter
1.75 inches
Available Specifications
Exhaust System Overview
This section provides a general overview of the exhaust system, including its design, components, and functionality. It outlines the purpose of each part and how they integrate to optimize performance and emissions.
Exhaust System Overview
This section provides a general overview of the exhaust system, including its design, components, and functionality. It outlines the purpose of each part and how they integrate to optimize performance and emissions.
System Design and Layout
- Dual exhaust system with Y-pipe design
- Stainless steel construction for durability
- Two mufflers for reduced backpressure
- Tailpipe diameter: 2.25 inches
- System weight: Approximately 45 lbs
Muffler and Tailpipe
This section details the specifications of the muffler and tailpipe, including dimensions, materials, and performance characteristics.
Muffler and Tailpipe
This section details the specifications of the muffler and tailpipe, including dimensions, materials, and performance characteristics.
Muffler Specifications
- Muffler type: Chambered muffler
- Muffler diameter: 6 inches
- Muffler length: 12 inches
- Internal baffles for sound reduction
- High-flow design for improved performance
Tailpipe Specifications
- Tailpipe diameter: 2.25 inches
- Tailpipe length: 24 inches
- Tailpipe material: Stainless steel
- Polished chrome tip
- Welded seams for durability
Catalytic Converter
This section provides details on the catalytic converter, including its type, size, and emissions standards.
Catalytic Converter
This section provides details on the catalytic converter, including its type, size, and emissions standards.
Catalytic Converter Specifications
- Converter type: Two-way catalytic converter
- Converter size: 4 inches in diameter
- Converter length: 6 inches
- Emissions standard: Meets 1985-1989 EPA standards
- Substrate material: Ceramic
Headers and Manifold
This section covers the specifications of the exhaust headers and manifold, including design and materials.
Headers and Manifold
This section covers the specifications of the exhaust headers and manifold, including design and materials.
Header Specifications
- Header type: 4-into-1 design
- Header material: Stainless steel
- Header diameter: 1.75 inches
- Welded construction for strength
- Ceramic coating for heat resistance
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Component Specifications
Overview
- Type
- Dual Exhaust System
- Configuration
- Rear Muffler with Dual Tips
- Platform
- DA Platform
- Material
- Stainless Steel
- Location
- Under Rear Suspension
Dimensions
- Exhaust Pipe Diameter
- 2.25 in (57.15 mm)
- Muffler Size
- 18 in (L) x 10 in (W) x 6 in (H)
- Tailpipe Diameter
- 2.00 in (50.80 mm)
- Catalytic Converter Length
- 14 in (355.60 mm)
- Overall System Length
- 102 in (2590.80 mm)
- System Weight
- 45 lbs (20.41 kg)
Materials
- Exhaust Manifold
- Cast Iron
- Downpipe
- Stainless Steel
- Mid-Pipe
- Aluminized Steel
- Muffler
- Stainless Steel
- Tailpipe
- Galvanized Steel
Features
- System Components
-
- Dual Chrome-Tipped Exhaust
- High-Flow Catalytic Converter
- Stainless Steel Muffler
- Aluminized Steel Mid-Pipe
- Heat Shielded Downpipe
- Exhaust Tips
-
- Dual Round Tips
- Polished Chrome Finish
- Rolled Edges for Smooth Flow
- Mounting Hardware
-
- Stainless Steel Exhaust Clamps
- Heat-Resistant Gaskets
- V-Band Clamps for Mid-Pipe
Safety Features
- Heat Shields
- Heat Shields on Manifold and Downpipe
- Catalytic Converter
- EPA-Compliant Emissions Control
- Exhaust Clamps
- Spring-Loaded Clamps for Secure Fitment
Comfort Features
- Noise Reduction
-
- Chambered Muffler Design
- Internally Finned Exhaust Tips
- Sound-Dampening Insulation
- Vibration Isolation
- Rubber Isolated Exhaust Hangers
Accessories
- Optional Components
-
- Exhaust System Gasket Set
- Stainless Steel Exhaust Clamps
- High-Flow Performance Muffler
- installation Kit
-
- Exhaust Mounting Hardware Kit
- Sealing Gaskets
- V-Band Clamp Kit
Maintenance
- Service interval
- Every 15,000 miles (24,140 km)
- Service Items
-
- Inspect Exhaust System for Leaks
- Check Exhaust Mounts and Hangers
- Replace Gaskets if Necessary
- Clean or Replace Spark Arrestor (if equipped)
- Inspect Muffler and Tailpipe for Damage
- Maintenance Notes
- Recommended to inspect system annually or if unusual noises occur.
Warranty
- Standard Warranty
- Miles: 50,000 milesYears: 5 yearsCoverage: Parts and Labor
- Extended Warranty
- Miles: 80,000 milesYears: 7 yearsCoverage: Parts and Labor
- Corrosion Warranty
- Miles: 100,000 milesYears: 10 yearsCoverage: Perforation Only
- Accessory Warranty
- Miles: 20,000 milesYears: 2 yearsCoverage: Accessories Only
Production Details
- Manufacturer
- Acura
- Manufacturing Process
-
- Robotic Welding
- Precision Mandrel Bending
- Hydroforming
- TIG Welding for Critical Joints
- Quality Control
- inspection: Leak Testing, Dimensional Inspection, Material Quality CheckCertifications: EPA Compliant, CARB Compliant, ISO 9001:2015 Certified
- Sustainability Practices
-
- Recycled Materials in Packaging
- Energy-Efficient Manufacturing Process
- Emissions Reduction in Production
- Production Metrics
- Units Per Day: 500 systemsCycle Time: 45 minutes per systemDefect Rate: <1%Yield Rate: 99.5%
Service Information for Exhaust Service
Maintenance and service requirements specific to this component
- Inspect exhaust system for leaks
- Check exhaust mounts and hangers
- Inspect muffler and tailpipe for damage
- Clean or replace spark arrestor (if equipped)
- Check catalytic converter efficiency
Recommended to perform during routine maintenance.
- Replace exhaust gaskets
- Inspect and tighten exhaust clamps
- Check for rust or corrosion
- Inspect exhaust heat shields
- Test exhaust system backpressure
More extensive inspection required; may need specialized tools.
- Replace muffler if necessary
- Inspect and replace catalytic converter
- Replace entire exhaust system if needed
- Check exhaust system performance
- Inspect and replace exhaust tips
Critical service interval; system overhaul may be required.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the exhaust pipe diameter for the 1985-1989 Acura Integra?
What is the exhaust pipe diameter for the 1985-1989 Acura Integra?
The exhaust pipe diameter for the 1985-1989 Acura Integra is 1.75 inches (44.45 mm) for the standard trim. Performance or aftermarket systems may vary.
Q2 What type of catalytic converter is used in the 1985-1989 Acura Integra?
What type of catalytic converter is used in the 1985-1989 Acura Integra?
The 1985-1989 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.
Q3 What is the torque specification for the exhaust manifold bolts?
What is the torque specification for the exhaust manifold bolts?
The exhaust manifold bolts for the 1985-1989 Acura Integra should be torqued to 23-25 ft-lbs (31-34 Nm). Ensure the engine is cool before tightening 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 12,000 miles or annually, whichever comes first. Look for rust, cracks, loose components, and leaks, especially around the muffler, catalytic converter, and joints.
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. Ensure the new muffler is compatible with the 1.75-inch exhaust pipe diameter and meets local emissions regulations.
Q6 What is the recommended material for exhaust system components?
What is the recommended material for exhaust system components?
The stock exhaust system uses aluminized steel for durability and corrosion resistance. Aftermarket options may include stainless steel for enhanced longevity and performance.
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 1985-1989 Acura Integra exhaust system, including diagrams, torque specs, and maintenance procedures.
Catalytic Converter Replacement Guide
Coming SoonStep-by-step guide for replacing the catalytic converter on the 1985-1989 Acura Integra, including safety precautions and tools required.
Exhaust System Inspection Checklist
Coming SoonA comprehensive checklist for inspecting the exhaust system, including common issues and troubleshooting tips.
Performance Exhaust Upgrades
Coming SoonInformation on upgrading to a performance exhaust system, including compatibility, benefits, and installation tips.
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