Buick Regal 2018-present Exhaust Specifications
Buick Regal 2018-present

Buick Regal 2018-present Exhaust Specifications

Discover the detailed exhaust system specifications for the 2018-Present Buick Regal. This guide covers all components, including the exhaust manifold, catalytic converter, muffler, and tailpipe, providing essential information for maintenance, repair, and upgrades.

Updated

Overview Specifications

This document provides detailed exhaust specifications for the 2018-Present Buick Regal. It is designed to assist users in understanding the technical aspects of the vehicle's exhaust system. The document is organized into sections, each focusing on a specific component or feature. Use the search functionality to find specific terms or navigate through the sections to explore the exhaust system in detail.

How to Use

Use the search bar to input keywords related to the exhaust system. The search will highlight relevant terms in the document, making it easier to locate specific information quickly.

Navigate through the document by clicking on the section titles in the table of contents. Each section is organized into subsections, allowing you to find detailed information on specific aspects of the exhaust system.

Key Specifications

Muffler Material

Stainless Steel

Catalytic Converter Type

Three-Way Catalyst

Exhaust Pipe Diameter

2.5 inches

Noise Level

72 dB

Emission Standards

EPA & CARB Compliant

Available Specifications

Exhaust System Components

This section covers the main components of the Buick Regal's exhaust system, including the muffler, catalytic converter, and exhaust pipes. Each component is described in detail, with technical specifications and their roles in the system.

Muffler
  • Constructed from stainless steel for durability
  • Designed to reduce exhaust noise effectively
  • Includes internal baffles for sound control
  • Features a dual exhaust tip design
Catalytic Converter
  • Utilizes a three-way catalyst for emission control
  • Made with a ceramic honeycomb structure
  • Compliant with EPA and CARB standards
  • Includes oxygen sensors for optimal performance
Exhaust Pipes
  • Made from high-grade stainless steel
  • Designed to withstand high temperatures
  • Features a mandrel-bent construction for smooth airflow
  • Includes heat shields for safety

Exhaust System Performance

This section focuses on the performance aspects of the Buick Regal's exhaust system, including airflow dynamics, noise levels, and emission control. It provides insights into how the system enhances the vehicle's overall performance.

Airflow Dynamics
  • Optimized for maximum exhaust gas flow
  • Reduces backpressure for improved engine efficiency
  • Features a straight-through design in the muffler
  • Includes resonator for additional airflow tuning
Noise Levels
  • Engineered for a quiet cabin experience
  • Produces a refined exhaust note under acceleration
  • Includes sound-deadening materials in the muffler
  • Complies with noise regulations
Emission Control
  • Reduces harmful emissions significantly
  • Includes a secondary air injection system
  • Features a closed-loop control system
  • Monitors exhaust gas recirculation (EGR)

Maintenance and Care

This section provides guidelines for maintaining and caring for the Buick Regal's exhaust system. It includes tips for inspection, cleaning, and addressing common issues to ensure longevity and optimal performance.

Inspection
  • Regularly check for rust and corrosion
  • Inspect for cracks or leaks in the pipes
  • Ensure all hangers and brackets are secure
  • Check the catalytic converter for blockages
Cleaning
  • Use a stainless steel cleaner for the muffler
  • Remove soot and carbon buildup from the tips
  • Clean heat shields to prevent debris accumulation
  • Inspect and clean oxygen sensors periodically
Common Issues
  • Address rattling noises from loose components
  • Replace worn-out gaskets and seals
  • Check for exhaust leaks and repair promptly
  • Monitor for a decrease in performance due to clogging

Component Specifications

Overview

Type
Dual Exhaust System
Configuration
Split Rear Exit
Platform
E2XX
Material
Stainless Steel
Location
Underbody, Rear

Dimensions

Pipe Diameter
2.5 inches / 63.5 mm
Overall Length
78 inches / 1981.2 mm
Tailpipe Length
18 inches / 457.2 mm
Muffler Length
24 inches / 609.6 mm
Catalyst Length
12 inches / 304.8 mm
Hanger Spacing
36 inches / 914.4 mm
Ground Clearance
6.5 inches / 165.1 mm

Materials

Exhaust Pipes
409 Stainless Steel
Muffler
Aluminized Steel
Catalyst
Ceramic Substrate with Platinum Coating
Tailpipe
304 Stainless Steel
Hangers
Rubber with Steel Reinforcement

Features

Performance
  • Optimized Flow Design
  • Reduced Back Pressure
  • Enhanced Sound Dampening
  • Improved Exhaust Scavenging
Durability
  • Corrosion-Resistant Materials
  • Heat-Resistant Coatings
  • Reinforced Hangers
  • Impact Protection Shields
Emissions
  • Catalytic Converter Integration
  • O2 Sensor Compatibility
  • Low Emission Design
  • EPA Compliance
Design
  • Dual Exit Configuration
  • Polished Tailpipe Finish
  • Compact Muffler Design
  • Seamless Welding
integration
  • Direct Bolt-On Fitment
  • OEM Sensor Compatibility
  • Factory Hanger Alignment
  • Clearance for Underbody Components

Safety Features

Heat Management
  • Heat Shields
  • Thermal Insulation
  • Safe Ground Clearance
Structural integrity
  • Reinforced Hangers
  • Impact-Resistant Materials
  • Seamless Welds
Emission Control
  • Catalytic Converter
  • O2 Sensors
  • Sealed Joints

Comfort Features

Noise Reduction
  • Tuned Muffler
  • Sound Dampening Layers
  • Resonator Integration
Vibration Control
  • Flexible Joints
  • Rubber Hangers
  • Balanced Design
Heat insulation
  • Heat Shields
  • Thermal Wrapping
  • Cool Airflow Channels

Accessories

Performance
  • High-Flow Catalytic Converter
  • Sport Muffler
  • Polished Tailpipe Tips
Protection
  • Heat Shield Covers
  • Underbody Skid Plates
  • Exhaust Wrap
Customization
  • Chrome Tailpipe Extensions
  • Exhaust Tips Covers
  • Custom Muffler Designs

Maintenance

Service interval
Every 30,000 miles / 36 months
Service Items
  • Inspect for Leaks
  • Check Hanger Integrity
  • Clean Exterior Surface
  • Inspect Catalytic Converter
  • Verify O2 Sensor Functionality
Maintenance Notes
Avoid abrasive cleaners; use stainless steel polish for tailpipes.

Warranty

Parts
3 years / 36,000 miles
Corrosion
5 years / 60,000 miles
Muffler
2 years / 24,000 miles
Catalytic Converter
8 years / 80,000 miles
Warranty Terms
Coverage for defects in materials and workmanship, excluding damage from external factors.

Production Details

Manufacturer
Tenneco Automotive
Manufacturing Process
  • Laser Cutting
  • Automated Welding
  • Press Forming
  • Quality Inspection
Quality Control
Dimensional Checks: 100% Inspection
Material Tests: X-Ray and Ultrasonic
Performance Tests: Flow Bench Testing
Sustainability Practices
  • Recycled Stainless Steel
  • Low-Emission Production
  • Waste Reduction Programs
Production Metrics
Daily Output: 500 Units
Defect Rate: Less than 0.5%
Energy Use: 15 kWh per Unit

Service Information for Exhaust Service

Maintenance and service requirements specific to the exhaust system

30,000
36
  • Inspect for Leaks
  • Check Hanger Integrity
  • Clean Exterior Surface
  • Inspect Catalytic Converter
  • Verify O2 Sensor Functionality

Use stainless steel cleaner for tailpipes to maintain finish.

60,000
72
  • Replace Gaskets
  • Inspect Muffler for Corrosion
  • Check Heat Shields
  • Test Exhaust Flow
  • Verify Emissions Compliance

Ensure proper alignment of heat shields to avoid rattling.

100,000
120
  • Replace Catalytic Converter
  • Overhaul Exhaust System
  • Inspect and Replace Hangers
  • Test All Sensors
  • Perform Emissions Test

Use OEM parts for replacements to maintain performance and warranty.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the technical specifications of the exhaust system for the 2018-Present Buick Regal?

The 2018-Present Buick Regal exhaust system is designed to meet strict emission standards while optimizing performance. It features a dual-exhaust system with chrome tips, constructed from high-quality stainless steel for durability. The system is compatible with both the 2.0L turbocharged engine and the hybrid powertrain options. It includes a resonator and muffler to minimize noise and improve sound quality. The exhaust system is designed to work seamlessly with the vehicle's engine control module for optimal performance and efficiency.

Q2

What are the maintenance requirements for the exhaust system?

Regular maintenance of the exhaust system involves inspecting for leaks, rust, or damage every 15,000 miles. Ensure the exhaust manifold bolts are tight and the heat shields are secure. Replace the exhaust gasket every 50,000 miles or as needed. If you notice rattling noises, have the system checked promptly. Avoid driving in extreme off-road conditions to prevent damage to the underside of the vehicle. Always use OEM or equivalent replacement parts for reliability.

Q3

How do I install or replace the exhaust system?

To replace the exhaust system, start by lifting the vehicle on a jack stand and removing the heat shields.Disconnect the oxygen sensor and exhaust manifold bolts. Carefully lower the exhaust system using a jack. Install the new system by reversing the steps, ensuring all connections are secure. Tighten all bolts to the specified torque (30-40 ft-lbs). Reconnect the oxygen sensor and test the system for leaks. Always refer to the service manual or consult a certified mechanic for precise instructions.

Q4

How do I troubleshoot common exhaust system issues?

Common issues include leaks, rattling noises, or decreased performance. Inspect the system for cracks or loose connections. Check the exhaust manifold gasket for signs of wear. If you hear a rattling noise, inspect the heat shields or muffler hanger. Use a sealant or replace gaskets as needed. If performance decreases, check for blockages or damage to the catalytic converter. Always use a scan tool to diagnose trouble codes related to the exhaust system.

Q5

How can I optimize the exhaust system for better performance?

To optimize performance, consider upgrading to a high-flow exhaust system with larger diameter pipes (2.5” or 3”). Install a performance muffler to reduce backpressure while maintaining a sporty sound. Ensure proper alignment and fitment to avoid restrictions. Use high-quality, corrosion-resistant materials for durability. Always follow local emissions regulations and consult a professional for custom modifications. Regular tuning and maintenance will ensure the system performs at its best.

Factory Service Resources

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

2018-Present Buick Regal Service Manual

Coming Soon

Comprehensive guide covering exhaust system maintenance, repair, and replacement procedures.

Technical Bulletin: Exhaust System Updates

Coming Soon

Official updates and technical service bulletins for the Buick Regal exhaust system.

Buick Regal Parts Catalog

Coming Soon

Detailed catalog of OEM parts for the exhaust system, including gaskets, mufflers, and pipes.

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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