Description
About the 2014 Audi A4 Exhaust System
The 2014 Audi A4 is a luxury sedan part of the B8 chassis generation (2009 to 2016), and the exhaust system is one of the most critical maintenance items on the car. The 2014 A4 was offered with two engines: the 2.0T TFSI inline-four (211 hp) and the 3.0T Supercharged V6 (272 hp), both of which use a multi-section exhaust system consisting of an exhaust manifold, catalytic converter, mid-pipe with resonator, muffler, and tailpipe. Replacing one or all of these components is a routine maintenance and performance task on a 10+ year old A4.
Why 2014 A4 Owners Replace the Exhaust
The most common triggers for an exhaust replacement on a 2014 A4 are: failed catalytic converter (causing P0420 or P0430 codes), rusted-through muffler or mid-pipe (typical on cars 7+ years old in salt-belt states), broken hangers from age, leaks at flange connections, or simply a desire to upgrade to a sportier sound. Aftermarket cat-back and axle-back exhausts also remain popular for the modest horsepower gain (5 to 15 hp typical) and the more aggressive exhaust note they deliver.
Cat-Back vs Axle-Back vs Full Exhaust
| Cat-Back System | Replaces everything from the catalytic converter back. Includes mid-pipe, resonator, muffler, and tailpipe. The most common upgrade choice. |
|---|---|
| Axle-Back System | Replaces only from the rear axle back. Just the muffler and tailpipe. Less expensive, easier install, smaller sound change. |
| Full Exhaust | Replaces everything from the engine back, including downpipe and catalytic converter. Required when the cat is failed. |
Things to Confirm Before Ordering
- Engine: 2.0T TFSI or 3.0T Supercharged V6
- Drivetrain: quattro (AWD) or FrontTrak (FWD)
- Body style: Sedan, Avant (wagon), or Allroad
- Component scope: complete system, cat-back only, axle-back only, or individual part replacement
- Reason for replacement: corrosion, cat failure, or performance upgrade
What Is Included, What Is Not Included
| INCLUDED | The exhaust system you order: complete system (manifold-back), cat-back (catalytic converter to tailpipe), axle-back (muffler and tailpipe), or individual component. New gaskets and clamps included. |
|---|---|
| NOT INCLUDED | Heat shields (sometimes included, varies by configuration), engine mounts, oxygen sensors (sold separately), exhaust hangers (typically reuses car’s hardware), tools. |
| Tools You Need | Standard hand tools, oxygen sensor socket, penetrating oil, jack and stands or lift, exhaust hanger removal tool, torque wrench. |
Vehicle Compatibility
The 2014 Audi A4 exhaust system is compatible with the following:
| 2014 Audi A4 Premium 2.0T quattro | Sedan, single tailpipe configuration |
|---|---|
| 2014 Audi A4 Premium Plus 2.0T quattro | Sedan |
| 2014 Audi A4 Prestige 2.0T quattro | Sedan |
| 2014 Audi A4 2.0T FrontTrak (FWD) | Sedan, FWD-specific exhaust routing |
| 2014 Audi A4 Avant 2.0T quattro | Wagon, longer mid-pipe |
| 2014 Audi A4 Allroad 2.0T quattro | Higher-clearance Allroad-specific configuration |
| 2014 Audi S4 3.0T Supercharged | Different exhaust, see our 2013 Audi S4 Exhaust page |
Cross-compatible years (B8 chassis): 2009 to 2016 A4 share the same exhaust geometry within engine and drivetrain combinations. Tell us your year and we confirm fit.
Condition and Inspection
This is a new 2014 Audi A4 exhaust system in OEM specification. Quality control includes:
- Stainless steel weld integrity inspection at every joint
- Flange flatness verification on manifold and mid-pipe connections
- Catalytic converter substrate inspection (no cracks or melting)
- Muffler internal baffle integrity check
- Tip alignment and chrome finish inspection
- Pressure test on completed assembly before packaging
This is a new exhaust system, not used. We do not sell used exhausts. New systems only, in OEM-equivalent quality.
Why Buy From Vaz Auto Solutions
- New OEM-specification 2014 Audi A4 exhaust system from established manufacturers
- Engine (2.0T or 3.0T) and drivetrain (quattro or FrontTrak) confirmed for your specific A4
- Component scope (cat-back, axle-back, full system) matched to your need
- All components inspected and pressure-tested before shipping
- Free crated freight to all 50 states, no hidden surcharges
- Real human on the phone who can match VIN to correct exhaust geometry
- 15 day replacement warranty on manufacturing defects
- Audi-experienced support team
Daniel R. –
Original cat failed and threw a P0420 at 95,000 miles. Vaz confirmed my engine and drivetrain, sent the complete system in stainless steel. Independent shop installed it in about 4 hours. No more codes, smooth idle, slight more aggressive tone than stock which I love. Saved me about $1,500 over the dealer quote.
Christine L. –
Salt belt got my mid-pipe and muffler at 85,000 miles. Vaz confirmed my Allroad-specific exhaust geometry and shipped the cat-back. Stainless construction is much better than the original mild steel. One year later still looks new. Avant runs and sounds great.