AUDI RS4 B9 (2018–2019)

Enhance your Audi RS4 B9 Avant (2018–2019) with premium Audi RS4 B9 performance parts and styling upgrades designed to improve exhaust sound, airflow, appearance and driving character. Explore valved exhaust systems, downpipes, air intakes, carbon fibre front splitters, rear diffusers, spoilers, grilles and exterior accessories developed for the 2.9 TFSI quattro platform. Based in Ireland, EURO TUNED supplies high-quality Audi RS4 B9 aftermarket parts across Europe and worldwide.

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Audi Dry Carbon Fiber Magnetic Paddle ShiftersAudi Dry Carbon Fiber Magnetic Paddle Shifters
EURO TUNED
Audi Dry Carbon Fiber Magnetic Paddle Shifters Sale price€199.99 EUR
Audi RS4 & RS5 B9 Valved Catback Exhaust SystemAudi RS4 & RS5 B9 Valved Catback Exhaust System
EURO TUNED
Audi RS4 & RS5 B9 Valved Catback Exhaust System Sale price€2,399.00 EUR
AUDI RS4 B9 2018–2019 PERFORMANCE PARTS AND STYLING UPGRADES

The Audi RS4 B9 Avant combines everyday practicality with serious performance, quattro traction and distinctive RS styling. Produced for the 2018 and 2019 model years in pre-facelift form, the B9 RS4 is powered by a twin-turbocharged 2.9 TFSI V6 engine and offers excellent potential for exhaust, intake, cooling and exterior styling upgrades.

Our collection of Audi RS4 B9 performance parts is designed for owners looking to improve sound, airflow, road presence and overall driving character. Whether you are creating a refined OEM+ daily driver or building a more aggressive tuned RS4, EURO TUNED offers carefully selected components for a wide range of performance and styling goals.

PERFORMANCE UPGRADES FOR THE 2.9 TFSI AUDI RS4

The 2.9 TFSI platform responds well to supporting modifications that improve intake airflow, exhaust flow and thermal management. Popular Audi RS4 B9 performance upgrades include valved exhaust systems, high-flow downpipes, cold air intakes, turbo inlet components, intercoolers and compatible ECU tuning.

Upgrades can be installed individually or combined as part of a complete performance package. The ideal setup depends on the intended use of the vehicle, desired exhaust volume, local regulations and whether the car remains factory tuned or receives additional software.

AUDI RS4 B9 PERFORMANCE EXHAUST SYSTEMS

An Audi RS4 B9 performance exhaust is one of the most effective ways to transform the character of the vehicle. Replacing the factory system can produce a deeper, more distinctive exhaust note while enhancing the appearance of the rear bumper and exhaust outlets.

Valved Audi RS4 B9 exhaust systems provide greater control over sound. With the valves closed, the system can retain a quieter and more refined tone for motorway journeys, early starts and everyday driving. Opening the valves creates a louder and more aggressive exhaust note for spirited driving.

Depending on the product, available options may include:

  • Audi RS4 B9 valved cat-back exhaust systems
  • Resonated and non-resonated configurations
  • Rear-section and axle-back exhaust upgrades
  • Polished, black, titanium-style or carbon fibre exhaust tips
  • Systems designed for standard or modified downpipes

The final exhaust volume and tone can be affected by catalytic converters, OPF or GPF filters, downpipes, resonators and engine software. These factors should be considered before selecting a system.

AUDI RS4 B9 DOWNPIPES

An upgraded Audi RS4 B9 downpipe is designed to reduce restriction after the turbochargers, increase exhaust volume and support additional tuning potential. Downpipes are commonly installed alongside a performance exhaust and suitable ECU software for a more complete upgrade.

High-flow catted downpipes offer a balance between improved flow, stronger sound and everyday usability. Catless downpipes are intended for maximum flow and a more aggressive exhaust note but may not comply with road-use, emissions or inspection regulations in every country.

Customers should always check local requirements before installing emissions-related components. Engine warning lights or software calibration may also need to be considered depending on the chosen setup.

AIR INTAKES AND TURBO INLET UPGRADES

An Audi RS4 B9 cold air intake can improve induction sound and support more efficient airflow into the twin-turbocharged engine. Intake upgrades are especially popular with owners looking for a stronger turbocharger sound and a more engaging experience under acceleration.

Depending on the design, an intake system may replace the original airbox, air filter, intake pipework or turbo inlet components. Selected systems feature carbon fibre construction, combining improved airflow with a premium engine-bay appearance.

INTERCOOLERS AND COOLING UPGRADES

Upgraded cooling components can help maintain more consistent performance during repeated acceleration, spirited road driving or track use. A larger Audi RS4 B9 intercooler is designed to improve charge-air cooling and reduce heat build-up compared with the standard setup.

Cooling upgrades are particularly relevant for tuned vehicles running increased boost or cars frequently driven under demanding conditions. Compatibility with existing pipework, sensors and bumper components should be checked before ordering.

AUDI RS4 B9 CARBON FIBRE PARTS

The wide arches and aggressive factory bodywork of the B9 Avant provide an excellent base for Audi RS4 B9 carbon fibre parts. Carefully selected exterior components can create a lower, wider and more motorsport-inspired appearance while complementing the original RS styling.

Popular Audi RS4 B9 styling upgrades may include:

  • Audi RS4 B9 carbon fibre front splitters
  • Front bumper extensions and canards
  • Audi RS4 B9 side skirt extensions
  • Carbon fibre rear diffusers
  • Roof spoilers and rear spoiler extensions
  • Carbon fibre mirror covers
  • Gloss black or carbon fibre front grilles
  • Carbon fibre exhaust tips
  • Additional exterior trim and aerodynamic components

These upgrades can be installed individually for a subtle OEM+ appearance or combined to create a complete Audi RS4 B9 carbon fibre styling package. Matching the front splitter, side skirts and rear diffuser helps create a balanced finish across the vehicle.

FRONT SPLITTERS AND SIDE SKIRT EXTENSIONS

An Audi RS4 B9 front splitter adds definition to the lower bumper and creates a more planted front-end appearance. Available styles can range from subtle factory-inspired designs to larger splitters intended for more aggressively modified vehicles.

Audi RS4 B9 side skirts visually lower the side profile and help connect the front and rear styling components. They work particularly well when paired with a matching front splitter and rear diffuser.

Fitment can vary between pre-facelift and facelift vehicles, so products listed for 2018–2019 models should not automatically be assumed to fit later RS4 versions.

AUDI RS4 B9 REAR DIFFUSERS AND SPOILERS

An Audi RS4 B9 rear diffuser transforms the lower rear bumper and gives the Avant a more performance-focused appearance. Different designs may suit factory exhaust outlets, upgraded exhaust tips or complete aftermarket exhaust systems.

A carbon fibre Audi RS4 B9 roof spoiler or spoiler extension can add a sportier finish to the rear of the vehicle while retaining the practical estate body style. Selecting components with matching carbon fibre weave and finish helps create a consistent exterior design.

GRILLES, MIRROR COVERS AND EXTERIOR ACCESSORIES

Smaller styling changes can make a noticeable difference to the appearance of the RS4. Audi RS4 B9 gloss black grilles, carbon fibre mirror covers and replacement exterior trim can reduce factory chrome details and create a cleaner, more modern design.

These accessories are ideal for owners who want to personalise their RS4 without replacing major body panels. They can also be combined with larger carbon fibre components to create a complete styling theme.

CHOOSING THE CORRECT AUDI RS4 B9 PARTS

Before purchasing Audi RS4 B9 aftermarket parts, it is important to confirm compatibility with the exact vehicle specification. Fitment can vary according to:

  • 2018 or 2019 production year
  • Pre-facelift B9 body design
  • Left-hand-drive or right-hand-drive configuration
  • OPF or GPF equipment
  • Factory sports exhaust or standard exhaust
  • Original bumper and diffuser configuration
  • Existing performance or styling modifications
  • Market-specific vehicle specification

Always check the complete product title, description and listed fitment before ordering. Customers who require additional confirmation can contact EURO TUNED with their registration number, production year or VIN.

BUY AUDI RS4 B9 PARTS FROM EURO TUNED

EURO TUNED is a European performance and styling specialist based in Ireland, supplying carefully selected upgrades for Audi RS models and other enthusiast vehicles. Our range includes Audi performance parts, valved exhaust systems, downpipes, cold air intakes, intercoolers, carbon fibre body parts and exterior styling accessories.

Every product is selected with fitment, construction quality, appearance and real-world usability in mind. Whether you are refining a daily-driven RS4 Avant or creating a more aggressive performance build, our collection offers upgrades for different budgets and modification goals.

EURO TUNED supplies customers throughout Ireland and Europe, with worldwide shipping available to many international destinations. Shop Audi RS4 B9 2018–2019 performance parts online and upgrade your 2.9 TFSI quattro Avant with premium tuning and styling components.