GO!

Audi A4 (B9) Tuning & Performance Parts

The B9 A4 is a good car to tweak because even small changes can make a real difference to how it looks and feels on the road. At Awesome GTI, you’ll find Audi A4 B9 mods for the way the car sits and looks, with parts matched to the B9 rather than lumped in with the A4 range as a whole.

The B9 range covers different trims and model years, so we’ve organised the parts clearly to help you find what suits your car. Check the fitment on each product, and if you’re not sure, the Awesome GTI team can point you in the right direction.

Audi A4 B9 Mods: Bodystyling and Handling

If styling is first on the list, you can build up the look piece by piece. The ECS Tuning Flat Side Skirts give the lower sides of the car a cleaner, sharper finish, while the ECS Tuning Carbon Front Lower Spoiler adds more aggression to the front end.

There’s plenty of scope to build your own Audi A4 B9 body kit using individual styling parts from the range. If you’re after Audi A4 B9 side skirts, check the fitment against your trim and model year, as some options are made for specific versions of the car.

Getting the ride height right can change the whole stance of a B9. The H&R Height Adjustable Spring Kit lets you bring the car down while retaining the factory electronic dampers on compatible models.

Brakes are easy to forget until you start driving the car harder. The EBC Bluestuff NDX Front Brake Pads give you another option if you want a more performance-focused front pad setup.

Why A4 B9 Owners Choose Awesome GTI

Awesome GTI has been working with VW, Audi, SEAT and Skoda cars since 1989, so the different engines and trim levels across the B9 range are familiar ground for us. If you’re planning Audi A4 B9 upgrades, we can help you work out what fits your car and what makes sense for the setup you’ve already got.

If you want more from the engine, you can also book an Audi A4 B9 remap right here. Our team can talk you through the options for your car and carry out the work at our Manchester workshop.

If you’re not sure where to start, contact the Awesome GTI team and tell us what you want from the car. We can help narrow down the parts that suit your B9 before you start buying.

Sidebar Sidebar Sidebar
  • RaceChip RS+App - A4 (B9) / 2015-

    RaceChip RS+App - A4 (B9) / 2015-

    RaceChip RS Tuning Box - Bluetooth Version with App ControlThe bestseller of the RaceChip tuning boxes. Completely newly developed optimisation software with engine-specific tuning, high-quality...

    £259.00 - £409.00
  • RaceChip RS - A4 (B9) / 2015-

    RaceChip RS - A4 (B9) / 2015-

    RaceChip RS Tuning Box - Non Bluetooth VersionThe bestseller of the RaceChip tuning boxes. Completely newly developed optimisation software with engine-specific tuning, high-quality hardware and a...

    £209.00 - £359.00
  • RaceChip S - A4 (B9) / 2015-

    RaceChip S - A4 (B9) / 2015-

    RaceChip S Tuning BoxUp to 20% more power and torqueUp to 10% fuel savings5 fine tuning mappingsEasy installation in 10 minutes including installation instructionsTuning perfectly tailored to your...

    £144.00 - £224.00
  • RaceChip XLR5 - A4 (B9) / 2015-

    RaceChip XLR5 - A4 (B9) / 2015-

    We developed RaceChip XLR5 to increase responsiveness on the road. Our innovative throttle tuning system lets tune your engines reactions to your taste – choose from 7 separate stages. You will love...

    £199.00
  • ECS Tuning Engine Bay Block Off Plugs - Set - Audi B9 ECS Tuning Engine Bay Block Off Plugs - Set - Audi B9
    Add to Cart The item has been added

    ECS Tuning Engine Bay Block Off Plugs - Set - Audi B9

    (1)

    From the factory, the B9 Audi comes with plastic 3 pronged caps to plug the holes in both wheel wells.  Unfortunately when driving in wet, dirty, or snowy conditions, these unsealed gaps allow all of...

    (1)

    £51.10
    Add to Cart The item has been added
  • AirRex Air Ride Kit V2 - A4 B9
    Add to Cart The item has been added

    AirRex Air Ride Kit V2 - A4 B9

    V2 HEIGHT BASED SYSTEMMonitors by using Height Sensors to check Suspension travel (Highest/Lowest Point). 100% Height Sensor Functionability with IOS/Android App. Rise On Start.OUR PERFORMANCE AIR...

    £5,862.00
    Add to Cart The item has been added
  • AirRex Air Ride Kit V1 - A4 B9
    Add to Cart The item has been added

    AirRex Air Ride Kit V1 - A4 B9

    V1 PRESSURE BASED SYSTEMMonitors Air Pressure in Air Strut to determine Ride Height, Allows Connection to IOS/Android Smart Phones with new Functions – ALL UP / ALL DOWN, Rise on StartOUR PERFORMANCE...

    £5,430.00
    Add to Cart The item has been added
  • Racingline Racing Brake Fluid - 500 ml Racingline Racing Brake Fluid - 500 ml
    Add to Cart The item has been added

    Racingline Racing Brake Fluid - 500 ml

    Racingline Racing Brake Fluid - 500 mlWhether you're running stock brakes for Fast Road, or a Big Brake Kit on the track, the new Racing Brake Fluid from Racingline is a fantastic upgrade to any...

    £18.35
    Add to Cart The item has been added
  • ECS Tuning Magnetic Wing Cover ECS Tuning Magnetic Wing Cover
    Add to Cart The item has been added

    ECS Tuning Magnetic Wing Cover

    These high quality wing covers by ECS are made to protect your vehicle's finish  from scratches and spills as you work. This fender cover has four 9-1/2" soft magnets sewn into top of cover ,...

    £34.74
    Add to Cart The item has been added
  • CTS-BV-0009-B9 CTS Turbo Audi A4 B9 2.0T BOV (Blow off Valve) Kit
    Add to Cart The item has been added

    CTS Turbo Audi A4 B9 2.0T BOV (Blow off Valve) Kit

    CTS Turbo is proud to release our 2.0T Atmospheric BOV KIT for the 2017+ Audi A4 B9 2.0T equipped vehicles. The CTS Turbo 2.0T Atmospheric BOV KIT is made of billet construction and completely...

    £271.86
    Add to Cart The item has been added
  • 034Motorsport Turbo Intake Pipe - Audi A4/A5 B9 2.0T 034Motorsport Turbo Intake Pipe - Audi A4/A5 B9 2.0T
    Add to Cart The item has been added

    034Motorsport Turbo Intake Pipe - Audi A4/A5 B9 2.0T

    NOTES: THIS INTAKE HOSE IS NOT SUITABLE FOR VEHICLES WITH AN AIRMASS METER AT THE AIRBOX 034Motorsport is proud to offer our High Flow Silicone Turbo Inlet Hose for the B9 Audi A4/A5 & Allroad 2.0...

    £97.76
    Add to Cart The item has been added
  • 034Motorsport P34 Cold Air Intake System - A4/A5 B9 2.0T 034Motorsport P34 Cold Air Intake System - A4/A5 B9 2.0T
    Add to Cart The item has been added

    034Motorsport P34 Cold Air Intake System - A4/A5 B9 2.0T

    NOTES: THIS INTAKE IS NOT SUITABLE FOR VEHICLES WITH AN AIRMASS METER AT THE AIRBOX 034Motorsport's P34 Cold Air Intake System delivers improved power, sound, and acceleration to B9 Audi A4/Allroad &...

    £607.45
    Add to Cart The item has been added

Frequently asked questions

What are the most popular Audi A4 B9 mods?

A lot depends on what you want to change first. Styling parts are a popular place to start, while lowering springs can make a noticeable difference to the way the B9 sits. If performance is higher up the list, an ECU remap is another option for compatible engines.

Do body kit and styling mods affect the Audi A4 B9's warranty?

They can affect warranty cover in some circumstances. Audi states that its warranty doesn't cover damage or defects caused by unauthorised parts or modifications, and additional bodywork itself isn't covered by the manufacturer warranty. If your B9 is still under warranty, check the terms before fitting aftermarket styling parts.

Are Audi A4 B9 mods available for both the Saloon and Avant?

Yes, there are Audi A4 B9 mods available for both body styles, but fitment isn't always interchangeable. Some parts are made for a particular trim or version of the B9, so check the individual product listing before ordering. If you're unsure, the Awesome GTI team can help confirm what fits your car.

Can I fit Audi A4 B9 mods myself or do I need a garage?

That comes down to the part and how confident you are working on the car. Some styling pieces may be manageable at home with the right tools, while suspension work is a more involved job. A remap needs the appropriate software and equipment, so that's something Awesome GTI can handle for you at our Manchester workshop.