A Professional Guide to Tuning Your Audi A4 B9 2.0L Turbo

The current Audi A4 is by far the best ever released by Audi. It’s the most powerful, most refined and has the greatest potential for modification. This guide will help you plan your modification pathway so you can achieve the best results for your hard earned money. Follow this guide in order to guarantee the best results.

EasyTUNE Level 1 Software Update by ECU Chip Tuning – $1470

A modern performance sedan like the Audi A4 is a piece of contemporary art for any driving enthusiast. Using this analogy, the software can be considered the canvas and the hardware the paint. If you don’t set up with the right canvas from the start then you will not get a masterpiece in the end.

EasyTUNE by ECU Chip Tuning is a handheld device used to store up to 4 software maps.
EasyTUNE by ECU Chip Tuning is optimised for 98 octane.
EasyTUNE by ECU Chip Tuning uses high quality tuning files developed in the UK & USA.
EasyTUNE by ECU Chip Tuning has the ability to restore factory software at any time.
EasyTUNE by ECU Chip Tuning has a built in code scanner to help with diagnostics.
EasyTUNE by ECU Chip Tuning can increase boost pressure for increased torque.
EasyTUNE by ECU Chip Tuning can decrease turbo lag for increased response.
EasyTUNE by ECU Chip Tuning can improve power delivery up until redline.
EasyTUNE by ECU Chip Tuning can deliver up to 65kW more power and 155nm more torque.

EasyTUNE ECU Chip Tuning Software is particularly optimised for the All Wheel Drive Audi A4. With so much traction, you need to build up boost as soon as possible. The software algorithms EasyTUNE uses are designed to reduce turbo lag as much as possible to create an absolute beast on the road.

Easy Tune Performance

  • Performance 60%
  • Handling 0%
  • Sound 0%

Denso IKH24 Upgraded Spark Plugs – $100

A piece of art is only as good as its weakest element. The same is true for your Audi A4. One of the most common failure points is the factory spark plugs. Your first hardware modification should be upgrading to the Denso IKH24 plug. These plugs are designed to take the extra power and reliably deliver performance everyday. For best results, ensure that these are changed with every service. It might cost you a little bit more but remember this is not a Toyota Camry, this is a highly tuned performance hot hatch.

Spark Plugs Performance

  • Performance 65%
  • Handling 0%
  • Sound 0%

Luft-Technik Intake System – $899 [ES#3176165]

Now that we have handled the canvas and we have taken care of any common reliability issues, it’s time to start some more significant modifications. There aren’t many good intakes for the B9 but this one ticks all the boxes. A simple setup with a large pod filter and enclosure to seal the system away when the bonnet is closed. It offers the best balance of performance, sound and looks. The increased flow will improve the spool time of the turbo and allow for less restriction at the upper end of the rev range.

Intake Performance

  • Performance 75%
  • Handling 0%
  • Sound 50%

Milltek Cat-Back Exhaust System – Non Resonated – $3099 [ES#3176662]

When there really isn’t any space to compromise, Milltek is the way to go. A unique high quality sound.

Exhaust Performance

  • Performance 90%
  • Handling 0%
  • Sound 100%

Easy Tune Level 2 Tuning Upgrade – $300

This upgrade will delete any engine lights or codes that have been triggered by the modifications thus far. It also optimises your software for these modifications and extracts that little bit of extra performance that couldn’t be done while your Audi A4 was stock. This is installed remotely and will take up the 3rd storage slot on your EasyTUNE handheld flasher.

Easy Tune Level Upgrade Performance

  • Performance 100%
  • Handling 0%
  • Sound 100%

Emmanuele Lowering Springs – $649 [ES#3218658]

So you have sorted out the performance and it sounds like an animal. You are up to your final stage, the handling. Most models left the factory with Audi’s adaptive suspension and driving modes so this can be a little tricky. With older models, coilovers offered the best performance while maintaining a relatively comfortable drive. With the addition of driving modes, there is no longer a need to replace the full assembly. A spring upgrade will allow the vehicle to achieve a significant drop in height (around 1.6”) without losing the driving mode functionality. This height change will improve body roll, cornering as well as improving traction on hard takeoffs. Oh and did we mention is looks damn cool?

Lowering Springs Performance

  • Performance 100%
  • Handling 50%
  • Sound 100%

Kumho V720 High Performance Tyres – Check with your local tyre outlet.

The final piece of the puzzle is getting everything to stick to the road. Now that you have more power and you can take corners more aggressively you will need to make sure your rubber is up to scratch. The factory tyres are designed to offer a balance of sound, traction and lifespan. At this point we know what you really care about, traction. Kumho has been in the tyre game for a long time and in our experience, the V720 offers the traction required to hold you down during the monstrous takeoff these things have and to safely take you around bends. It does all this without breaking the bank too!

Kumho Tyres Performance

  • Performance 0%
  • Handling 100%
  • Sound 0%

Complete Professional Guide to Upgrading Your Audi A4

So there you have it, a complete professional guide to upgrading your Audi A4. Your total hardware investment is $4805 for this entire package (tyres excluded). We can even help you with your entire upgrade process for around $100 per week. If you need more information let us know and we can help you achieve the results you have been dreaming about.

Complete Performance For Audi A4


  • Performance 100%
  • Handling 100%
  • Sound 100%