Acura TL 1999-2003 Exhaust Specifications
Acura TL 1999-2003

Acura TL 1999-2003 Exhaust Specifications

Detailed technical guide and specifications for the 1999-2003 Acura TL exhaust system. Learn about the catalytic converter, muffler, exhaust pipes, oxygen sensors, and exhaust manifold, including torque specs and maintenance tips.

Updated

Exhaust System Specifications Specifications

This document provides a comprehensive overview of the exhaust system specifications for the 1999-2003 Acura TL. It includes detailed technical information, components, and performance metrics. Use this guide to identify key specifications, understand system components, and perform maintenance or upgrades. Navigate through the sections to find specific details, and refer to the quick reference section for key metrics at a glance.

How to Use

To find specific information, use the search functionality by typing keywords such as 'muffler', 'catalytic converter', or 'pipe diameter'. Results will highlight relevant sections.

Navigate through the document by scrolling through the sections. Each major section is divided into subsections with detailed technical points. Use the table of contents or quick reference section to locate information quickly.

Key Specifications

Exhaust Pipe Diameter

2.25 inches

Catalytic Converter Type

High-flow stainless steel

Muffler Type

Chambered muffler

Tailpipe Material

Stainless steel

Max Flow Rate

150 CFM per bank

Available Specifications

Exhaust System Overview

The 1999-2003 Acura TL features a dual-exhaust system designed for optimal performance and reduced emissions. The system includes a stainless steel exhaust manifold, high-flow catalytic converters, and a muffler with dual outlets. This section provides an overview of the system's design and functionality.

System Design
  • Dual-exhaust system for improved engine performance
  • Stainless steel construction for durability
  • High-flow catalytic converters for emissions reduction
  • Dual chrome-tipped outlets for enhanced aesthetics
  • Muffler designed for minimal backpressure
Key Components
  • Exhaust manifold with integrated heat shield
  • Catalytic converters with oxygen sensor ports
  • Intermediate pipe with flex joint
  • Muffler with dual outlets
  • Tailpipes with chrome tips

Exhaust System Components

This section details the technical specifications of each component in the exhaust system, including materials, dimensions, and performance characteristics.

Exhaust Manifold
  • Constructed from high-temperature stainless steel
  • Integrated heat shield to reduce under-hood temperatures
  • Dual exhaust ports for improved flow
  • Bolt-on design for easy replacement
  • Weight: approximately 15 lbs
Catalytic Converter
  • High-flow design for reduced backpressure
  • Stainless steel body with ceramic substrate
  • EPA-compliant emissions reduction
  • Integrated oxygen sensor ports
  • Weight: approximately 10 lbs each

Performance Metrics

This section provides performance-related specifications and metrics for the exhaust system, including flow rates and sound levels.

Flow Rate
  • Maximum flow rate: 150 CFM per bank
  • Dual exhaust system increases total flow rate by 30%
  • High-flow catalytic converters maintain optimal engine performance
  • Muffler designed to minimize restriction at high RPM
  • System optimized for engines producing up to 200 horsepower
Sound Levels
  • Muffler design reduces exhaust noise to 75 dB at idle
  • Dual outlets produce a balanced exhaust note
  • System designed to meet OEM sound level standards
  • Aftermarket modifications can increase sound levels by up to 10 dB
  • Resonator chambers reduce droning at cruising speeds

Component Specifications

Overview

Type
dual exhaust system
Configuration
rear muffler with dual outlets
Platform
SH-AWD platform
Material
stainless steel
Location
under chassis, rear of vehicle

Dimensions

Exhaust Pipe Diameter
2.25 inches (57 mm)
Catalytic Converter Size
5.5 inches x 4.0 inches (140 mm x 102 mm)
Muffler Size
20 inches x 8 inches (508 mm x 203 mm)
Tailpipe Diameter
2.5 inches (64 mm)
Exhaust System Length
12.5 feet (3.81 meters)
Weight
65 pounds (29.5 kg)
Heat Shield Dimensions
12 inches x 8 inches (305 mm x 203 mm)

Materials

Exhaust Manifold
cast iron
Catalytic Converter
ceramic honeycomb
Exhaust Pipes
stainless steel (304 grade)
Muffler
stainless steel with fiberglass insulation
Tailpipe
polished stainless steel

Features

Performance Features
  • low-restriction airflow design
  • dual exhaust outlets for improved flow
  • optimized backpressure reduction
  • high-flow catalytic converter
Sound Features
  • chambered muffler design for reduced drone
  • aggressive exhaust note
  • dual-tip exhaust outlets
Design Features
  • mandrel-bent exhaust pipes for maximum flow
  • welded connections for durability
  • polished exhaust tips
Durability Features
  • stainless steel construction for corrosion resistance
  • thermal insulation for heat protection
  • durable mounting brackets
Emissions Features
  • meets EPA emissions standards
  • CARB compliant
  • high-efficiency catalytic converter

Safety Features

Leak Detection
  • visual inspection points
  • heat shields to protect components
  • secure mounting brackets
Thermal Protection
  • insulated exhaust components
  • heat shields near fuel lines
  • protected wiring harnesses
Structural integrity
  • reinforced exhaust hangers
  • durable weld joints
  • anti-vibration mounts

Comfort Features

Noise Reduction
  • chambered muffler design
  • insulated exhaust system
  • dual exhaust outlets
Smooth Operation
  • low backpressure design
  • optimized exhaust flow
  • durable construction
Aerodynamic Benefits
  • streamlined exhaust routing
  • minimal drag impact
  • improved undercarriage airflow

Accessories

Performance Accessories
  • high-flow catalytic converter
  • stainless steel exhaust tips
  • performance muffler upgrade
Styling Accessories
  • chrome-plated tips
  • carbon fiber tips
  • exhaust tip trim rings
Functional Accessories
  • exhaust system heat shield
  • exhaust manifold gasket kit
  • exhaust pipe clamps

Maintenance

Service interval
every 15,000 miles or 12 months
Maintenance Items
  • inspect exhaust system for leaks
  • check exhaust mounts and hangers
  • clean or replace spark arrestor (if equipped)
  • inspect heat shields and insulation
  • check for rust or corrosion
Notes
Use only stainless steel components for repairs. Avoid using exhaust paste near catalytic converter.

Warranty

Basic Warranty
Miles: 50,000 miles
Years: 4 years
Coverage: entire exhaust system
Powertrain Warranty
Miles: 70,000 miles
Years: 5 years
Coverage: exhaust manifold and catalytic converter
Emissions Warranty
Miles: 80,000 miles
Years: 8 years
Coverage: catalytic converter and exhaust system
Corrosion Warranty
Miles: unlimited
Years: 5 years
Coverage: perforation of exhaust components

Production Details

Manufacturer
Acura
Manufacturing Process
  • robotic welding
  • precision mandrel bending
  • stainless steel assembly
  • quality control inspection
Quality Control
inspection Checklist: leak testing, dimensional accuracy, material quality, weld integrity
Certification: ISO 9001:2015 certified
Sustainability Practices
  • recyclable materials
  • low-emission manufacturing
  • energy-efficient processes
Production Metrics
Annual Production: 50,000 units
Manufacturing Lead Time: 6 weeks
Defect Rate: less than 1%

Service Information for Exhaust Service

Maintenance and service requirements specific to the exhaust system

7,500 miles
6 months
  • Inspect exhaust system for leaks or damage
  • Check exhaust hangers and mounts
  • Clean exhaust system components
  • Inspect heat shields and insulation
  • Check for rust or corrosion

Conduct visual inspection and perform necessary repairs

15,000 miles
12 months
  • Inspect catalytic converter efficiency
  • Check exhaust gas recirculation system
  • Clean or replace oxygen sensor (if necessary)
  • Inspect exhaust manifold gasket
  • Check muffler and tailpipe condition

Use specialized tools for catalytic converter inspection

45,000 miles
36 months
  • Replace exhaust system gaskets
  • Inspect and replace exhaust hangers
  • Clean or replace muffler and tailpipe
  • Inspect exhaust system welds
  • Check for exhaust system performance

Major service interval - critical for system longevity

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the diameter of the exhaust pipe on a 1999-2003 Acura TL?

The exhaust pipe diameter for the 1999-2003 Acura TL is 2.25 inches (57.15 mm). This measurement is consistent across all trims and is designed to optimize exhaust flow and backpressure for the 3.2L V6 engine.

Q2

What type of catalytic converter is used in the 1999-2003 Acura TL?

The 1999-2003 Acura TL is equipped with a three-way catalytic converter. It is designed to reduce harmful emissions by converting carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) into less harmful gases like carbon dioxide (CO2), nitrogen (N2), and water vapor (H2O).

Q3

What is the recommended torque specification for the exhaust manifold bolts?

The exhaust manifold bolts on the 1999-2003 Acura TL should be torqued to 23 lb-ft (31 Nm). It is critical to follow this specification to prevent leaks and ensure proper sealing of the exhaust system.

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 emissions regulations. Improper installation or non-compliant parts may void your vehicle's warranty.

Q5

How often should the exhaust system be inspected for leaks or damage?

The exhaust system should be inspected every 12 months or 12,000 miles, whichever comes first. Look for signs of rust, cracks, or loose connections, especially around the exhaust manifold, catalytic converter, and muffler. Regular inspections help prevent carbon monoxide leaks and ensure optimal 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 TL Exhaust System Service Manual

Coming Soon

Official service manual for the 1999-2003 Acura TL exhaust system, including detailed diagrams, torque specifications, and repair procedures.

Catalytic Converter Replacement Guide

Coming Soon

Step-by-step guide for replacing the catalytic converter on a 1999-2003 Acura TL, including tools required and safety precautions.

Exhaust System Maintenance Tips

Coming Soon

Comprehensive guide on maintaining the exhaust system, including inspection schedules, common issues, and troubleshooting tips.

Performance Exhaust Upgrades

Coming Soon

Information on upgrading the exhaust system for improved performance, including compatible aftermarket parts and installation guidelines.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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