Acura Integra 1994-2001 Exhaust Specifications
Acura Integra 1994-2001

Acura Integra 1994-2001 Exhaust Specifications

Detailed technical specifications for the 1994-2001 Acura Integra exhaust system, including OEM parts, torque values, and installation guidelines. Essential for repairs, maintenance, and performance upgrades.

Updated

Exhaust System Specifications Specifications

This document provides a detailed overview of the exhaust system specifications for the 1994-2001 Acura Integra. It includes technical details, components, and key measurements to help users understand, maintain, or modify the exhaust system. Use the search functionality to find specific components or measurements, and navigate through the sections to explore detailed information.

How to Use

To search for specific information, use the search bar at the top of the document. Enter keywords such as 'muffler', 'catalytic converter', or 'pipe diameter' to find relevant details quickly.

Navigate through the sections by clicking on the section titles. Each section contains subsections with detailed technical specifications. Use the table of contents or scroll through the document to explore all available information.

Key Specifications

Exhaust System Material

Stainless Steel / Aluminized Steel

Muffler Type

Chambered Design

Catalytic Converter Location

Mid-Pipe / Pre-Muffler

Exhaust Pipe Diameter

2-2.5 Inches

Header Configuration

4-2-1 or 4-1

Available Specifications

Exhaust System Overview

The exhaust system of the 1994-2001 Acura Integra is designed to reduce emissions and optimize engine performance. It consists of several key components, including the exhaust manifold, catalytic converter, muffler, and exhaust pipes. This section provides an overview of the system's layout and functionality.

System Components
  • Exhaust manifold made of cast iron or stainless steel
  • Catalytic converter integrated into the system for emissions control
  • Muffler with chambered design for sound reduction
  • Exhaust pipes constructed from stainless steel or aluminized steel
  • Tailpipe with chrome or stainless steel tip
  • Heat shields and insulation to protect surrounding components
System Functionality
  • Reduces engine exhaust emissions through catalytic conversion
  • Minimizes noise levels through muffler and resonator chambers
  • Improves engine performance by reducing backpressure
  • Includes oxygen sensor feedback for optimal engine operation
  • Designed for durability with corrosion-resistant materials
  • Compatible with both base and Type R models

Muffler and Resonator

The muffler and resonator are critical components of the exhaust system, responsible for reducing noise levels while maintaining proper exhaust flow. This section details their design, materials, and performance characteristics.

Muffler Specifications
  • Chambered muffler design for efficient sound reduction
  • Internal baffles to minimize backpressure
  • Made from stainless steel or aluminized steel
  • Welded construction for durability and leak resistance
  • Compatible with aftermarket exhaust systems
  • Weight: approximately 15-20 lbs
Resonator Specifications
  • Straight-through resonator design for optimal flow
  • Constructed from stainless steel or aluminized steel
  • Length: approximately 12-18 inches
  • Diameter: 2-2.5 inches
  • Includes internal perforations for sound damping
  • Mounting brackets for secure installation

Catalytic Converter

The catalytic converter is a vital emissions control component that reduces harmful pollutants in the exhaust gases. This section provides specifications and details about its construction and operation.

Converter Specifications
  • High-flow catalytic converter for optimal performance
  • Constructed with ceramic or metallic substrate
  • Coated with precious metals (platinum, palladium, rhodium)
  • Integrated oxygen sensor for feedback control
  • Heat shield to protect surrounding components
  • Weight: approximately 10-15 lbs
  • EPA-compliant emissions reduction
Installation and Maintenance
  • Located between the exhaust manifold and muffler
  • Requires proper gasket seals for installation
  • Avoid exposure to extreme temperatures or physical damage
  • Regular inspection recommended for signs of wear or damage
  • Replacement required if clogged or damaged
  • Must meet local emissions regulations

Exhaust Pipes and Mounts

The exhaust pipes and mounts are essential for directing exhaust gases from the engine to the muffler and tailpipe. This section details their construction, materials, and mounting hardware.

Exhaust Pipe Specifications
  • Constructed from aluminized or stainless steel
  • Diameter: 2-2.5 inches for optimal flow
  • Length: varies by model and configuration
  • Bent and flared ends for secure connections
  • Heat-resistant coating for durability
  • Weight: approximately 10-15 lbs per section
  • Compatible with OEM and aftermarket systems
Mounting Hardware
  • Rubber isolators to reduce vibration and noise
  • Steel or aluminum hangers for secure mounting
  • Adjustable brackets for precise alignment
  • Corrosion-resistant hardware for durability
  • Includes nuts, bolts, and washers
  • Weight: approximately 5-10 lbs
  • Easy installation with basic tools

Headers and Manifold

The exhaust manifold and headers are responsible for collecting exhaust gases from the engine cylinders and directing them into the exhaust system. This section provides specifications and details about their construction and operation.

Exhaust Manifold
  • Constructed from cast iron or stainless steel
  • Integrated heat riser for improved performance
  • Gasket-sealed ports for leak prevention
  • Includes mounting points for catalytic converter
  • Weight: approximately 25-35 lbs
  • Compatible with both SOHC and DOHC engines
  • Requires proper alignment for installation
Headers
  • Available in 4-2-1 or 4-1 configurations
  • Constructed from stainless steel or aluminized steel
  • Mandrel-bent tubes for optimal flow
  • Welded flanges for secure connection
  • Includes heat shields for protection
  • Weight: approximately 20-30 lbs
  • Optional ceramic coating for durability

Component Specifications

Overview

Type
Dual Exhaust System
Configuration
Dual exhaust with single muffler
Platform
DA Series
Material
Stainless Steel
Location
Rear-mounted

Dimensions

System Length
7.5 feet (2.29 meters)
Muffler Size
4 inches x 6 inches x 14 inches
Tailpipe Diameter
2.25 inches (57 mm)
Catalytic Converter Size
5 inches x 6 inches x 10 inches
Resonator Size
3 inches x 6 inches x 12 inches
Exhaust Tip Size
3.5 inches (89 mm)
Exhaust Manifold Size
Aluminum, 1.5 inches ports

Materials

Exhaust Manifold
Cast Iron
Downpipe
Stainless Steel
Mid-Pipe
Stainless Steel
Muffler
Stainless Steel with Fiberglass
Tailpipe
Aluminized Steel

Features

Performance
  • Dual Exhaust System for improved flow
  • Mandrel-bent pipes for smooth exhaust flow
  • High-flow catalytic converter
  • Free-flowing muffler design
Sound Reduction
  • Resonator for reduced drone
  • Chambered muffler for sound dampening
  • Thermal insulation on muffler
Durability
  • Stainless Steel construction for corrosion resistance
  • Welded joints for strength
  • Rust-resistant coating on components
Emissions
  • Catalytic converter for emissions control
  • Oxygen sensor integration
Appearance
  • Polished stainless steel tips
  • Sleek, aerodynamic design

Safety Features

Heat Shields
  • Heat shields around catalytic converter
  • Heat shields near fuel tank
Secure Mounting
  • Rigid exhaust mounts
  • Sturdy hangers for system support
Leak Resistance
Sealed connections and welds

Comfort Features

Sound Dampening
  • Fiberglass packing in muffler
  • Sound-deadening materials
Vibration Reduction
  • Flexible couplers
  • Vibration dampening mounts
Aerodynamic Design
Streamlined for airflow
insulation
Thermal insulation on exhaust components

Accessories

High Performance
  • Aftermarket high-flow mufflers
  • Performance catalytic converters
  • Stainless steel exhaust tips
Exhaust Tips
  • Chrome-plated tips
  • Black chrome tips
  • Carbon fiber tips
Exhaust Kits
  • Cat-back exhaust systems
  • Headers and downpipe kits
  • Full exhaust system kits

Maintenance

Service interval
15,000 miles (24,140 km) or 15 months
Items
  • Inspect exhaust system for leaks
  • Check for rust or damage
  • Ensure all connections are tight
  • Replace gaskets if necessary
Notes
Use compatible exhaust system parts. Avoid high-pressure washes near components.

Warranty

Basic
Miles: 36,000 miles
Years: 3 years
Coverage: Exhaust system components
Powertrain
Miles: 70,000 miles
Years: 5 years
Coverage: Catalytic converter and muffler
Emissions
Miles: 80,000 miles
Years: 8 years
Coverage: Catalytic converter
Accessories
Miles: 18,000 miles
Years: 1 year
Coverage: Accessories and tips

Production Details

Manufacturer
Acura
Manufacturing Process
  • Robotic welding
  • Precision cutting
  • Hydroforming
  • Quality inspection
Quality Control
inspection: Visual and functional tests
Certifications: Emissions and durability
Testing: Leak and performance tests
Sustainability
Recycled materials used where possible
Production Metrics
Units Per Day: 500
Assembly Time: 2 hours per system

Service Information for Exhaust System Service

Maintenance and service requirements specific to the exhaust component

7,500 miles
7.5 months
  • Inspect exhaust system for leaks
  • Check for rust or damage
  • Ensure all connections are tight
  • Replace gaskets if necessary

Visual inspection recommended to ensure system integrity.

30,000 miles
30 months
  • Inspect catalytic converter efficiency
  • Check muffler and resonator condition
  • Replace oxygen sensor if needed
  • Clean or replace spark plugs

Special tools may be required for catalytic converter testing.

60,000 miles
60 months
  • Replace exhaust gaskets
  • Inspect and replace muffler if needed
  • Check and replace catalytic converter
  • Inspect exhaust manifold for cracks

Major service recommended; consult a professional mechanic.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the exhaust pipe diameter for the 1994-2001 Acura Integra?

The exhaust pipe diameter for the 1994-2001 Acura Integra is 2.25 inches for most trims, including the LS and GS models. The Type R trim features a slightly larger diameter of 2.36 inches to accommodate higher performance requirements.

Q2

What type of catalytic converter is used in the 1994-2001 Acura Integra?

The 1994-2001 Acura Integra uses a three-way catalytic converter with a ceramic honeycomb substrate. It is designed to reduce emissions of hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NOx) to comply with federal and state emissions standards.

Q3

What is the torque specification for the exhaust manifold bolts?

The torque specification for the exhaust manifold bolts on the 1994-2001 Acura Integra is 23-25 lb-ft (31-34 Nm). Ensure the engine is cool before tightening to avoid warping the manifold.

Q4

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 2.25-inch exhaust pipe diameter and meets local noise and emissions regulations. Improper installation may void your vehicle's warranty.

Q5

What is the recommended service interval for inspecting the exhaust system?

It is recommended to inspect the exhaust system every 12,000 miles or annually, whichever comes first. Check for rust, cracks, loose hangers, and leaks, especially around the joints and catalytic converter.

Q6

What is the backpressure specification for the exhaust system?

The backpressure specification for the 1994-2001 Acura Integra exhaust system should not exceed 1.5 psi at idle and 2.5 psi at 2,500 RPM. Excessive backpressure can indicate a blockage or restriction in the exhaust system.

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 Repair Manual

Coming Soon

Official repair manual for the 1994-2001 Acura Integra exhaust system, including detailed diagrams, torque specifications, and troubleshooting guides.

Catalytic Converter Replacement Guide

Coming Soon

Step-by-step guide for replacing the catalytic converter on the 1994-2001 Acura Integra, including safety precautions and emissions compliance tips.

Performance Exhaust Upgrade Options

Coming Soon

Explore aftermarket exhaust systems and mufflers designed for the 1994-2001 Acura Integra, with performance comparisons and installation tips.

Exhaust System Inspection Checklist

Coming Soon

A comprehensive checklist for inspecting the exhaust system, including common issues like rust, leaks, and loose components.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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