Infiniti Q70 2014-present Exhaust Specifications
Infiniti Q70 2014-present

Infiniti Q70 2014-present Exhaust Specifications

Explore detailed exhaust system specifications for the 2014-Present Infiniti Q70, including pipe diameters, muffler configurations, catalytic converter details, and emission standards. Ideal for maintenance, upgrades, and compliance.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the exhaust system of the 2014-Present Infiniti Q70. It is designed to help users understand the components, performance, and maintenance requirements of the exhaust system. Use the search functionality to quickly locate specific details or navigate through the sections for a comprehensive understanding of the exhaust system.

How to Use

Use the search bar to enter keywords related to the exhaust system, such as 'muffler' or 'catalytic converter'. The search results will highlight relevant sections and subsections for easy access.

Scroll through the document to explore major sections like 'Exhaust Components', 'Performance Specifications', and 'Maintenance Guidelines'. Each section contains subsections with detailed technical points for easy reference.

Key Specifications

Exhaust Material

Stainless Steel

Flow Rate

450 CFM

Backpressure

<1.5 psi

Emissions

<0.05 g/mi NOx

Muffler Lifespan

100,000 miles

Available Specifications

Exhaust Components

This section outlines the key components of the Infiniti Q70's exhaust system, including the muffler, catalytic converter, exhaust pipes, and sensors. Each component is described in detail to provide a clear understanding of its role and functionality.

Muffler
  • Constructed from high-grade stainless steel for durability
  • Designed to reduce exhaust noise while maintaining performance
  • Features a dual-tip design for enhanced aesthetics
  • Integrated with sound-dampening technology
  • Optional: Available in sport-tuned variants for enhanced sound
Catalytic Converter
  • Utilizes a three-way catalytic converter for efficient emissions control
  • Made from ceramic honeycomb substrate coated with precious metals
  • Complies with strict emissions standards (e.g., Euro 6, EPA Tier 3)
  • Includes oxygen sensors for real-time monitoring
  • Optional: High-flow catalytic converter for performance models
Exhaust Pipes
  • Constructed from corrosion-resistant stainless steel
  • Dual exhaust system for improved airflow and performance
  • Precision-welded joints for leak-free operation
  • Heat-resistant coatings to protect surrounding components
  • Optional: Polished finish for a premium look

Performance Specifications

This section provides detailed performance metrics for the Infiniti Q70's exhaust system, including flow rates, backpressure levels, and emissions data. These specifications are essential for understanding the system's efficiency and impact on vehicle performance.

Flow Rate
  • Maximum flow rate of 450 CFM (cubic feet per minute)
  • Optimized for high-performance engine variants
  • Ensures minimal restriction for improved horsepower
  • Balanced design for both efficiency and sound
  • Optional: Customizable flow rates for aftermarket systems
Backpressure
  • Maintains backpressure levels below 1.5 psi
  • Engineered to enhance exhaust scavenging
  • Reduces turbo lag in turbocharged models
  • Ensures smooth operation across all RPM ranges
  • Optional: Adjustable backpressure for tuning purposes
Emissions
  • Emits less than 0.05 g/mi of NOx (nitrogen oxides)
  • Complies with global emissions standards
  • Includes advanced OBD-II diagnostics for emissions monitoring
  • Reduces CO2 emissions by up to 15% compared to previous models
  • Optional: Enhanced emissions control for eco-friendly variants

Maintenance Guidelines

This section provides essential maintenance tips and guidelines for the Infiniti Q70's exhaust system. It covers inspection intervals, common issues, and replacement recommendations to ensure optimal performance and longevity.

Inspection Intervals
  • Inspect exhaust system every 15,000 miles or annually
  • Check for rust, cracks, and leaks during routine maintenance
  • Monitor oxygen sensor performance using diagnostic tools
  • Inspect catalytic converter for clogging or damage
  • Optional: Schedule professional inspections for high-mileage vehicles
Common Issues
  • Rust formation in humid or salty environments
  • Cracked exhaust manifolds due to thermal stress
  • Loose or damaged hangers causing rattling noises
  • Faulty oxygen sensors leading to poor fuel efficiency
  • Optional: Address issues promptly to prevent further damage
Replacement Recommendations
  • Replace muffler every 100,000 miles or as needed
  • Catalytic converter lifespan: 10-15 years under normal conditions
  • Use OEM or high-quality aftermarket parts for replacements
  • Ensure proper alignment during installation to prevent leaks
  • Optional: Upgrade to performance exhaust systems for enhanced durability

Component Specifications

Overview

Type
Dual exhaust system
Configuration
Rear-mounted, split design
Platform
FM platform
Material
Stainless steel
Location
Underbody, rear section

Dimensions

Pipe Diameter
2.5 inches (63.5 mm)
Tailpipe Diameter
3.0 inches (76.2 mm)
System Length
12.5 feet (3.81 meters)
Muffler Length
24 inches (609.6 mm)
Muffler Width
10 inches (254 mm)
Muffler Height
8 inches (203.2 mm)
Catalytic Converter Length
18 inches (457.2 mm)
Catalytic Converter Diameter
5 inches (127 mm)

Materials

Exhaust Pipes
409 stainless steel
Muffler
304 stainless steel
Catalytic Converter
Ceramic substrate with stainless steel housing
Tailpipes
Polished stainless steel
Gaskets
Graphite-impregnated steel

Features

Performance
  • Optimized backpressure for engine efficiency
  • Tuned exhaust note
  • Reduced exhaust gas temperature
  • Improved airflow dynamics
Design
  • Dual chrome-plated tailpipes
  • Aerodynamic muffler shape
  • Heat-resistant coatings
  • Corrosion-resistant materials
Emissions
  • Dual catalytic converters
  • Oxygen sensor integration
  • Compliant with Euro 6 standards
  • Low particulate emissions
Durability
  • Rust-resistant materials
  • High-temperature tolerance
  • Vibration dampening
  • Impact-resistant design
integration
  • Direct bolt-on installation
  • Compatible with OEM sensors
  • Seamless connection to engine manifold
  • Integrated heat shields

Safety Features

Heat Management
  • Heat shields for underbody protection
  • Thermal insulation for nearby components
Structural integrity
  • Reinforced mounting points
  • Crush-resistant catalytic converter housing
Emissions Control
  • Dual oxygen sensors
  • Catalytic converter efficiency monitoring

Comfort Features

Noise Reduction
  • Tuned muffler for quiet operation
  • Resonator for drone elimination
Vibration Control
  • Flexible exhaust hangers
  • Rubber isolators for mounting
Aesthetics
  • Polished tailpipe finish
  • Symmetrical dual exhaust design
Thermal Management
  • Heat dissipation design
  • Cooling fins on muffler

Accessories

Performance Upgrades
  • High-flow catalytic converters
  • Performance mufflers
  • Exhaust tips
Maintenance Tools
  • Exhaust hanger removal tool
  • Oxygen sensor socket
  • Exhaust sealant
Protection
  • Exhaust wrap
  • Heat shield tape
  • Underbody coating

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Inspect for leaks
  • Check hangers and mounts
  • Clean tailpipes
  • Inspect catalytic converter
  • Check oxygen sensors
Maintenance Notes
Avoid harsh chemicals on polished surfaces. Use only OEM-recommended gaskets and seals.

Warranty

Basic Warranty
Miles: 36,000
Years: 3
Coverage: Defects in materials and workmanship
Emissions Warranty
Miles: 80,000
Years: 8
Coverage: Catalytic converter and oxygen sensors
Corrosion Warranty
Miles: Unlimited
Years: 7
Coverage: Perforation due to rust
Extended Warranty
Miles: 100,000
Years: 5
Coverage: Optional extended coverage for exhaust components

Production Details

Manufacturer
Infiniti Genuine Parts
Manufacturing Process
  • Laser-cut stainless steel
  • Robotic welding
  • Precision bending
  • Automated quality inspection
Quality Control
Pressure Testing: 100% tested for leaks
Material Certification: ISO 9001 compliant
Dimensional Accuracy: Laser scanning verification
Sustainability Practices
  • Recycled stainless steel usage
  • Low-emission manufacturing
  • Waste reduction initiatives
Production Metrics
Annual Production: 50,000 units
Defect Rate: < 0.1%
Lead Time: 2 weeks

Service Information for exhaust Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect exhaust system for leaks
  • Check hangers and mounts for wear
  • Clean tailpipes and inspect for corrosion
  • Verify oxygen sensor operation
  • Inspect catalytic converter condition

Use only OEM-approved cleaning products for polished surfaces

60,000
48
  • Perform full exhaust system inspection
  • Check for heat shield integrity
  • Verify exhaust alignment
  • Test backpressure levels
  • Inspect gaskets and seals

Specialized tools required for backpressure testing

100,000
84
  • Replace oxygen sensors
  • Inspect catalytic converter efficiency
  • Check for system corrosion
  • Replace exhaust hangers if necessary
  • Perform full system pressure test

Catalytic converter replacement may be required if efficiency drops below 85%

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is the exhaust system compatible with all 2014-Present Infiniti Q70 models?

The exhaust system is designed to be compatible with all 2014-Present Infiniti Q70 models, including both V6 and V8 engine variants. However, slight modifications may be required for specific trims or aftermarket upgrades. Always verify the part number and consult the manufacturer's compatibility chart before purchase to ensure proper fitment.

Q2

What maintenance is required for the Infiniti Q70 exhaust system?

Regular maintenance for the Infiniti Q70 exhaust system includes inspecting for rust, cracks, or leaks every 12 months or 12,000 miles. Ensure all hangers and brackets are secure, and clean the exhaust tips to prevent buildup. For optimal performance, replace worn-out gaskets and check the catalytic converter during routine service intervals.

Q3

How do I install or replace the exhaust system on a 2014-Present Infiniti Q70?

To install or replace the exhaust system, first, lift the vehicle securely using a jack stand. Remove the old exhaust by detaching the hangers, unbolting the flanges, and disconnecting the oxygen sensors. Install the new system by reversing the process, ensuring proper alignment and torque specifications. Use new gaskets and tighten all bolts to the manufacturer's recommended torque.

Q4

What should I do if my Infiniti Q70 exhaust system is making unusual noises?

Unusual noises from the exhaust system, such as rattling or hissing, often indicate loose components, leaks, or damaged parts. Inspect the exhaust hangers, flanges, and gaskets for wear. Check for holes or cracks in the pipes or muffler. Tighten or replace any faulty components. If the issue persists, consult a professional mechanic for further diagnosis.

Q5

How can I optimize the performance of my Infiniti Q70 exhaust system?

To optimize performance, consider upgrading to a high-flow catalytic converter or a performance muffler. Ensure the exhaust system is free of obstructions and leaks. Regularly clean the exhaust tips and inspect for carbon buildup. For enhanced sound and efficiency, pair the exhaust system with a compatible cold air intake and engine tuning.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Infiniti Q70 Exhaust System Service Manual

Coming Soon

This manual provides detailed instructions for servicing and maintaining the exhaust system, including torque specifications and troubleshooting tips.

Infiniti Q70 Exhaust System Technical Bulletin

Coming Soon

This bulletin outlines common issues, updates, and solutions for the 2014-Present Infiniti Q70 exhaust system, including recalls and performance enhancements.

Infiniti Q70 Exhaust Parts Catalog

Coming Soon

This catalog lists all OEM and aftermarket exhaust components available for the 2014-Present Infiniti Q70, including part numbers and compatibility details.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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