Acura NSX 1990-2005 Exhaust Specifications
Detailed technical specifications for the exhaust system of the 1990-2005 Acura NSX, including OEM parts, torque values, materials, and performance details. Ideal for technicians and enthusiasts.
Exhaust System Specifications Specifications
This document provides a comprehensive overview of the exhaust system specifications for the 1990-2005 Acura NSX. It includes detailed technical information, maintenance guidelines, and performance characteristics. Use this guide to understand the components, materials, and dimensions of the exhaust system, as well as recommended maintenance and upgrade practices.
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 selecting sections from the table of contents. Each section provides detailed subsections with technical specifications and maintenance tips.
Key Specifications
Muffler Type
Dual-chamber stainless steel
Catalytic Converter
High-efficiency ceramic core
Pipe Diameter
2.25 inches (main) / 2.5 inches (tail)
Exhaust System Weight
Approx. 45 pounds
Noise Level
80 dB at 4,000 RPM
Available Specifications
Exhaust System Overview
This section provides a general overview of the exhaust system, including its components, materials, and design features. It also explains the purpose of each component and how they contribute to overall performance.
Exhaust System Overview
This section provides a general overview of the exhaust system, including its components, materials, and design features. It also explains the purpose of each component and how they contribute to overall performance.
System Components
- Dual exhaust system with two mufflers
- Stainless steel construction for durability
- Catalytic converters for emissions control
- Tailpipe diameter: 2.5 inches
- System weight: Approximately 45 pounds
Performance Features
- Low-restriction design for improved flow
- Optimized backpressure for engine performance
- Heat-resistant coating on critical components
- Dual-tip exhaust outlets for aesthetic appeal
- Reduced noise levels for street legality
Technical Specifications
This section provides detailed technical specifications for the exhaust system, including dimensions, materials, and emissions compliance.
Technical Specifications
This section provides detailed technical specifications for the exhaust system, including dimensions, materials, and emissions compliance.
Pipe and Muffler Dimensions
- Main exhaust pipe diameter: 2.25 inches
- Muffler inlet/outlet diameter: 2.5 inches
- Tailpipe length: 18 inches
- Muffler body length: 12 inches
- Catalytic converter length: 6 inches
Emissions and Compliance
- Catalytic converter efficiency: 95%
- Emissions compliance: Meets EPA standards
- Noise level: 80 dB at 4,000 RPM
- Backpressure rating: 1.2 psi at 6,000 RPM
- Leakage rate: <1% of total exhaust flow
Maintenance and Upgrades
This section provides guidelines for maintaining and upgrading the exhaust system, including recommended practices and compatible aftermarket components.
Maintenance and Upgrades
This section provides guidelines for maintaining and upgrading the exhaust system, including recommended practices and compatible aftermarket components.
Routine Maintenance
- Inspect exhaust system for leaks every 15,000 miles
- Clean mufflers and catalytic converters every 30,000 miles
- Replace gaskets and seals every 50,000 miles
- Check for rust and corrosion annually
- Tighten exhaust system mounting brackets as needed
Upgrade Options
- High-flow catalytic converters for increased performance
- Lightweight titanium exhaust systems
- Performance mufflers with adjustable sound levels
- Stainless steel exhaust tips for enhanced appearance
- Aftermarket exhaust manifolds for improved flow
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Component Specifications
Overview
- Type
- dual exhaust system
- Configuration
- rear-mounted, dual mufflers
- Platform
- NA1/NA2
- Material
- stainless steel
- Location
- rear
Dimensions
- Exhaust Pipe Diameter
- 2.25 in (57.15 mm)
- Muffler Size
- 8 in (203.2 mm) x 12 in (304.8 mm)
- Catalytic Converter Size
- 5.5 in (139.7 mm) x 4.5 in (114.3 mm)
- Tailpipe Diameter
- 2.5 in (63.5 mm)
- System Length
- 11.5 ft (3.5 meters)
- Weight
- 45 lbs (20.4 kg)
Materials
- Exhaust Manifold
- cast iron with stainless steel coating
- Downpipe
- stainless steel
- Mid-Pipe
- stainless steel
- Muffler
- stainless steel with perforated core
- Tailpipe
- stainless steel
Features
- Performance
-
- high-flow catalytic converters
- optimized exhaust routing
- low-restriction mufflers
- dual exit design
- reduced backpressure
- Design
-
- lightweight construction
- mandrel-bent pipes
- precision-welded joints
- adjustable exhaust tips
- aerodynamic positioning
- Sound
-
- sport-tuned exhaust note
- variable exhaust valve system (later models)
- noise reduction technology
- smooth exhaust flow
- aggressive sound profile
Safety Features
- Heat Shielding
-
- high-temperature ceramic coating
- insulated exhaust components
- protected wiring harness
- Exhaust Coupling
-
- flexible exhaust couplings
- fail-safe connections
- Leak Protection
-
- leak-resistant joints
- double-welded seams
Comfort Features
- Noise Reduction
-
- sound-dampening materials
- muffler insulation
- resonance chambers
- Thermal insulation
-
- heat shields
- insulated exhaust pipes
- firewall protection
Accessories
- Exhaust Kits
-
- high-performance exhaust kit
- stainless steel exhaust system upgrade
- ceramic-coated exhaust components
- Catalytic Converters
-
- high-flow catalytic converter
- direct-fit catalytic converter
- Exhaust Tips
-
- polished stainless steel tips
- carbon fiber tips
- adjustable tips
Maintenance
- Service interval
- Every 15,000 miles (24,140 km) or 12 months
- Service Items
-
- Exhaust system inspection
- Muffler and pipe inspection
- Catalytic converter check
- Exhaust manifold gasket inspection
- Heat shield inspection
- Maintenance Notes
- Inspect for leaks, damage, or corrosion. Replace gaskets and seals as needed.
Warranty
- Parts Warranty
- Miles: 36,000 milesYears: 3 yearsCoverage: Exhaust components
- Labor Warranty
- Miles: 36,000 milesYears: 3 yearsCoverage: Exhaust system repairs
- Corrosion Warranty
- Miles: 60,000 milesYears: 5 yearsCoverage: Exhaust system corrosion
- Emissions Warranty
- Miles: 80,000 milesYears: 7 yearsCoverage: Catalytic converter and muffler
Production Details
- Manufacturer
- Honda (OEM) or aftermarket specialists
- Manufacturing Process
-
- CNC tubing fabrication
- MIG welding
- Precision bending
- Robotic welding
- Acoustic tuning
- Quality Control
- inspection: Visual and pressure testingCertification: OEM-compliantTesting: Dyno testing for performance
- Sustainability Practices
-
- Recycled materials
- Low-emission manufacturing
- Energy-efficient processes
- Production Metrics
- Annual Production: 1500 unitsLead Time: 6-8 weeksFailure Rate: <1%
Service Information for Exhaust System Service
Maintenance and service requirements specific to the exhaust system
- Inspect exhaust system for leaks or damage
- Check exhaust manifold gasket for integrity
- Inspect muffler and pipes for corrosion
- Verify catalytic converter functionality
- Clean or replace spark arrestor (if equipped)
Perform visual inspection and test for exhaust leaks
- Inspect flexible exhaust couplings
- Check exhaust hangers and mounts
- Inspect heat shields and insulation
- Test exhaust system backpressure
- Replace exhaust system gaskets (if needed)
Use specialized tools for backpressure testing
- Replace exhaust system gaskets
- Inspect and clean catalytic converter
- Replace muffler packing (if equipped)
- Inspect exhaust tips for damage
- Weld any minor cracks or joints
Major service interval - consider component replacement
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the stock exhaust pipe diameter for the 1990-2005 Acura NSX?
What is the stock exhaust pipe diameter for the 1990-2005 Acura NSX?
The stock exhaust pipe diameter for the 1990-2005 Acura NSX is 60.5 mm (2.38 inches). This diameter is optimized for the vehicle's 3.0L and 3.2L V6 engines to ensure proper exhaust flow and backpressure.
Q2 What material is used in the stock exhaust system of the Acura NSX?
What material is used in the stock exhaust system of the Acura NSX?
The stock exhaust system of the Acura NSX is constructed from stainless steel, which provides durability and resistance to corrosion. The muffler and resonator are also made from high-quality stainless steel to ensure longevity.
Q3 Can I install an aftermarket exhaust without voiding my warranty?
Can I install an aftermarket exhaust without voiding my warranty?
Installing an aftermarket exhaust may void your warranty if it causes damage to other components or if the installation is not performed by a certified technician. Always consult your dealership or warranty documentation before making modifications.
Q4 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 1990-2005 Acura NSX is 22-25 ft-lbs (30-34 Nm). Proper torque ensures a secure seal and prevents exhaust leaks.
Q5 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 during routine maintenance. Look for signs of rust, cracks, or loose components, and ensure the exhaust hangers are secure.
Q6 What is the backpressure range for the stock exhaust system?
What is the backpressure range for the stock exhaust system?
The stock exhaust system is designed to maintain a backpressure range of 1.5-2.5 psi at normal operating RPMs. This range ensures optimal engine performance and fuel efficiency.
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 NSX Exhaust System Service Manual
Coming SoonOfficial service manual for the 1990-2005 Acura NSX exhaust system, including detailed diagrams, torque specifications, and installation procedures.
Stainless Steel Exhaust Maintenance Guide
Coming SoonA comprehensive guide on maintaining stainless steel exhaust systems, including cleaning tips and corrosion prevention techniques.
Aftermarket Exhaust Compatibility Chart
Coming SoonA chart detailing compatible aftermarket exhaust systems for the 1990-2005 Acura NSX, including performance and sound comparisons.
Exhaust System Safety and Inspection Checklist
Coming SoonA step-by-step checklist for inspecting the exhaust system, including safety precautions and common issues to look for.
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Technical Information
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