Buick Regal 2011-2017 Exhaust Specifications
Buick Regal 2011-2017

Buick Regal 2011-2017 Exhaust Specifications

Comprehensive technical specifications for the 2011-2017 Buick Regal exhaust system, including pipe diameters, catalytic converter details, muffler configurations, and oxygen sensor locations. Essential information for maintenance, repair, and performance upgrades.

Updated

Overview Specifications

This document provides detailed information about the exhaust system specifications for the 2011-2017 Buick Regal. It covers key components, performance characteristics, and maintenance tips. Designed for both enthusiasts and technicians, this guide helps users understand the exhaust system's design, functionality, and care requirements. Use the sections below to find specific information or the quick reference for essential specs.

How to Use

Use the search bar to quickly locate specific terms or components within the document. Enter keywords like 'muffler' or 'catalytic converter' to jump directly to relevant sections.

Browse through the major sections using the table of contents. Each section is divided into subsections with detailed points. Click on a section title to expand and view its contents.

Key Specifications

Exhaust Material

Stainless steel

Catalytic Converter Efficiency

Up to 90%

Idle Noise Level

65-70 dB

Backpressure

1.5-2.0 psi

System Life Expectancy

8-10 years

Available Specifications

Exhaust System Components

This section outlines the primary components of the Buick Regal's exhaust system, including the manifold, catalytic converter, muffler, and tailpipe. It explains the role each part plays in reducing emissions, noise, and improving overall vehicle performance.

Exhaust Manifold
  • Material: Cast iron or stainless steel
  • Function: Collects exhaust gases from the engine cylinders
  • Durability: Resistant to high temperatures and corrosion
  • Compatibility: Specific to 2.0L and 2.4L engine models
Catalytic Converter
  • Type: Three-way catalytic converter
  • Efficiency: Reduces harmful emissions by up to 90%
  • Location: Positioned between the exhaust manifold and muffler
  • Maintenance: Requires periodic inspection for clogging
Muffler and Tailpipe
  • Design: Chambered or straight-through design
  • Material: Stainless steel for corrosion resistance
  • Function: Reduces exhaust noise and directs gases away
  • Aesthetic: Dual exhaust tips for sporty appearance

Performance Specifications

This section details the performance characteristics of the exhaust system, including backpressure, flow rates, and noise levels. It also highlights how the system contributes to the vehicle's overall horsepower and torque.

Backpressure and Flow
  • Optimal backpressure: 1.5-2.0 psi
  • Flow rate: 150-200 CFM (cubic feet per minute)
  • Impact on performance: Enhances low-end torque
  • Design features: Tuned for balanced performance
Noise Levels
  • Idle noise: 65-70 dB
  • Acceleration noise: 75-80 dB
  • Material: Sound-deadening materials used in muffler
  • Compliance: Meets federal noise regulations

Maintenance and Care

Learn how to maintain the exhaust system to ensure longevity and optimal performance. This section covers inspection schedules, common issues, and replacement guidelines for key components.

Inspection and Cleaning
  • Frequency: Inspect every 12,000 miles
  • Focus areas: Check for rust, cracks, and leaks
  • Cleaning: Use a wire brush and rust remover
  • Professional inspection: Recommended annually
Common Issues
  • Rust and corrosion: Common in high-humidity areas
  • Leaks: Often caused by damaged gaskets or pipes
  • Clogging: Typically in the catalytic converter
  • Noise: Rattling or excessive noise indicates wear
Replacement Guidelines
  • Life expectancy: 8-10 years under normal conditions
  • Signs of wear: Loud noise, reduced performance, rust
  • Replacement parts: OEM or aftermarket options available
  • Installation: Requires professional expertise

Component Specifications

Overview

Type
Single exit, dual-tip
Configuration
Stainless steel cat-back system
Platform
Epsilon II
Material
Stainless steel
Location
Rear center

Dimensions

Pipe Diameter
2.25 inches (57.15 mm)
Tip Diameter
3.5 inches (88.9 mm)
System Length
96 inches (2438.4 mm)
Muffler Length
22 inches (558.8 mm)
Muffler Width
8 inches (203.2 mm)
Muffler Height
5.5 inches (139.7 mm)
Ground Clearance
7.2 inches (182.88 mm)

Materials

Pipes
409 stainless steel
Muffler
304 stainless steel
Hangers
Rubber reinforced with steel
Gaskets
Graphite composite
Tips
Polished 304 stainless steel

Features

Performance
  • Optimized backpressure
  • Improved exhaust flow
  • Reduced turbulence
  • Enhanced scavenging effect
Acoustics
  • Tuned exhaust note
  • Reduced drone
  • Balanced sound level
  • Deep tone at low RPM
Design
  • Mandrel-bent pipes
  • Seamless welds
  • Corrosion-resistant finish
  • Sleek tip design
Durability
  • High-temperature resistance
  • Impact-resistant construction
  • Rust-proof materials
  • Vibration dampening
installation
  • Direct bolt-on fitment
  • Precision alignment
  • Reinforced hangers
  • No cutting required

Safety Features

Thermal Protection
  • Heat shields
  • Thermal wrap
  • Cooling fins
Structural integrity
  • Reinforced mounting points
  • Flex joints
  • Impact-resistant muffler
Emission Control
EPA compliant catalytic converter

Comfort Features

Noise Reduction
  • Chambered muffler design
  • Acoustic insulation
  • Resonator tuning
Vibration Control
  • Rubber isolators
  • Flexible joints
  • Balanced system
Thermal Management
  • Heat dissipation
  • Underbody insulation
  • Shielded components

Accessories

Performance
  • High-flow catalytic converter
  • Performance muffler
  • Resonator delete pipe
  • Exhaust tip extensions
Protection
  • Heat shield wrap
  • Exhaust hanger kit
  • Underbody coating
  • Rust inhibitor spray
Aesthetic
  • Chrome exhaust tips
  • Carbon fiber tips
  • Burnt titanium tips
  • Custom engraving

Maintenance

Service interval
Every 30,000 miles (48,280 km)
Service Items
  • Inspect for leaks
  • Check hanger condition
  • Examine gaskets
  • Clean exhaust tips
  • Verify mount integrity
  • Inspect heat shields
Maintenance Notes
Use only OEM replacement parts for best fitment and performance

Warranty

Parts
3 years / 36,000 miles
Corrosion
5 years / 100,000 miles
Performance
1 year / 12,000 miles
Workmanship
2 years / 24,000 miles
Warranty Terms
Covers defects in materials and workmanship under normal use conditions

Production Details

Manufacturer
Tenneco Automotive
Manufacturing Process
  • Laser cutting
  • Automated welding
  • Hydroforming
  • Robotic assembly
Quality Control
Pressure Test: 30 psi
Leak Test: Submerged air test
Dimensional Check: Laser measurement
Finish Inspection: Visual and tactile
Sustainability
  • Recycled materials
  • Low-emission production
  • Waste reduction program
  • Energy-efficient manufacturing
Production Metrics
Daily Output: 1200 units
Scrap Rate: 0.8%
Recycle Rate: 95%
Energy Use: 15 kWh/unit

Service Information for exhaust Service

Maintenance and service requirements specific to the exhaust system

15,000
12
  • Visual inspection of system
  • Check for exhaust leaks
  • Inspect hanger condition
  • Clean exhaust tips
  • Verify mount integrity

Pay special attention to areas near the catalytic converter

30,000
24
  • Comprehensive system check
  • Replace gaskets if needed
  • Inspect heat shields
  • Check for corrosion
  • Verify exhaust alignment

Use OEM gaskets for proper sealing

60,000
48
  • Full system inspection
  • Check flex pipe condition
  • Inspect catalytic converter
  • Test backpressure
  • Verify emission compliance

May require professional diagnostic equipment

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the technical specifications of the exhaust system for the 2011-2017 Buick Regal?

The exhaust system for the 2011-2017 Buick Regal is designed to work with its 2.0L turbocharged and 2.4L naturally aspirated engines. It features a dual exhaust system in higher trims, with aluminized steel construction for durability. The system includes a catalytic converter, resonator, and muffler, ensuring compliance with emissions standards and optimal performance.

Q2

What maintenance is required for the exhaust system?

Regular inspections every 15,000 miles are recommended to check for rust, leaks, or damage. The catalytic converter should be inspected every 30,000 miles. Avoid driving in extreme weather conditions to prevent damage, and use the correct fuel type to maintain system integrity.

Q3

How do I install or replace the exhaust system?

Lift the vehicle on a jack stand, remove the old exhaust by disconnecting hangers and heat shields. Install the new system starting from the manifold, ensuring proper alignment. Tighten all connections and test for leaks by starting the engine.

Q4

How do I troubleshoot common exhaust issues?

Check for rattling sounds by inspecting exhaust hangers. Look for leaks around connections and repair with sealant. If performance decreases, inspect the catalytic converter for blockages and consider replacement if necessary.

Q5

How can I optimize exhaust system performance?

Upgrade to a high-performance muffler or cat-back system for improved flow. Use stainless steel components for durability. Consider engine tuning to complement exhaust upgrades and ensure proper installation to maintain emissions standards.

Factory Service Resources

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

2011-2017 Buick Regal Exhaust System Service Manual

Coming Soon

Detailed guide covering maintenance and replacement procedures for the exhaust system.

Technical Bulletin: Exhaust System Updates

Coming Soon

Addresses common issues and updates for the exhaust system, including repair procedures.

Buick Regal Exhaust Parts Catalog

Coming Soon

Comprehensive list of compatible parts for the exhaust system with diagrams.

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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