
Exhaust
Catalytic Converter

Features a 2.50" aircraft grade stainless steel tubing that, also includes a 200 cell high flow catalytic converter that connects directly t...
$2,473.00

CTS Turbo B9 S4/S5 3.0T (EA839) high flow cat is made to maximize exhaust flow for highest power gains. Do not compromise performance and sound with factory par...
$699.99

Downpipe Kit with 300CPSI Racing catalyst for Audi S4 B9 / S5 F5 3,0TFSI
made out of high quality stainless steel 1.4301 (SS304)
complete 2x Ø3 and a...
$2,290.00

The 034Motorsport Stainless Steel Racing Catalyst for B9 S4/S5 is designed as a drop-in replacement for the restrictive factory catalytic converter. The Stainle...
$1,758.00
The Unitronic Performance Downpipe for the 2017+ S4® & S5® 3.0TFSI® EA839 (CWG) engine is a direct bolt-on upgrade, designed to optimally elimin...
$2,399.99
Performance

Meet the perfected soundtrack.
Max gains of 16 hp and 17 ft-lbs of torque at the crank
Available as sophisticated Track Edition
Downpipes and precisio...
$2,115.79
$2,010.00

From the masters of S4 performance, AWE proudly presents the B9 S4 exhaust solution. Signature AWE tone, performance, and options for every taste and budget.
...
$3,642.11
$3,460.00

Fits models with factory rear sports differential
Performance to blow your mind, not your ears! Improve performance and your vehicle's sound with ...
$3,189.00

Meet the perfected B9 S4 soundtrack.
Max gains of 16 hp and 17 ft-lbs of torque at the crank
Available as sophisticated Touring Edition
Touring Editio...
$2,768.42
$2,630.00

Fits models with factory rear sports differential
Performance to blow your mind, not your ears! Improve performance and your vehicle's sound with ...
$3,403.00

Fits models without factory rear sports differential
Performance to blow your mind, not your ears! Improve performance and your vehicle's sound wi...
$3,403.00

Fits models without factory rear sports differential
Performance to blow your mind, not your ears! Improve performance and your vehicle's sound wi...
$3,189.00
The 034Motorsport Res-X Front Resonator Delete for the B9/B9.5 S4/S5 3.0T unleashes a throaty growl under hard acceleration that exudes performance and warns by...
$294.00
The 034Motorsport Res-X Resonator Delete and X-Pipe unleashes a throaty growl and exotic tone that exudes the sound of performance and warns bystanders that thi...
$430.00