Audi A4 B9 - Buyer's Guides, Tuning, and Vehicle Comparisons
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![Audi A4 B9 - Buyer's Guides, Tuning, and Vehicle Comparisons](https://i0.wp.com/vwtuning.co/wp-content/uploads/2021/10/Audi-A4-B9-Performance-Mods.png?fit=1280%2C689&ssl=1)
Learn more about the 2016-Present Audi A4 B9. Includes Audi A4 B9 common problems, reliability, longevity, best mods, comparison articles, and more.
![Can a Tuned Audi B9 A4 beat an S4? 1/4 Mile Drag Race](https://i.ytimg.com/vi/8totHjwqLqM/sddefault.jpg)
Can a Tuned Audi B9 A4 beat an S4? 1/4 Mile Drag Race
![How To Unlock HIDDEN FEATURES On Audi A4 B9 Using OBDEleven](https://i.ytimg.com/vi/7_pXkN5x7Tk/maxresdefault.jpg)
How To Unlock HIDDEN FEATURES On Audi A4 B9 Using OBDEleven
IE Audi B9 A4, A5, & Q5 Performance ECU Tune – Integrated Engineering
![Audi RS4 Avant (B9) PH Used Buying Guide - PistonHeads UK](https://images.pistonheads.com/nimg/45770/mceu_103834311654163864750.jpg)
Audi RS4 Avant (B9) PH Used Buying Guide - PistonHeads UK
![034Motorsport Dynamic+ Adjustable Rear Sway Bar, B9/B9.5 Audi A4/S4, A5/S5/RS5, Allroad](https://www.034motorsport.com/media/fishpig/webp/catalog/product/cache/1151afdc91a7a37549ca32dea82af8c6/0/3/034motorsport-solid-adjustable-rear-sway-bar-upgrade-b9-audi-a4-s4-allroad-034-402-1010-1.webp)
034Motorsport Dynamic+ Adjustable Rear Sway Bar, B9/B9.5 Audi A4/S4, A5/S5/RS5, Allroad
![Audi A4 tuning tips and A4 performance parts](https://www.torquecars.com/cms_admin/images/a4-b7-dtm-rear-600x357.jpg)
Audi A4 tuning tips and A4 performance parts
![Is it worth tuning a B9 A4?](https://tunezilla.com/files/1670875770__MG_2589-Web.jpg)
Is it worth tuning a B9 A4?
![2019 Audi A4 Gets Minor Visual Updates, News](https://hips.hearstapps.com/hmg-prod/images/2019-audi-a4-106-1530210620.jpg?resize=640:*)
2019 Audi A4 Gets Minor Visual Updates, News
![Used Guide: 2017-2021 Audi A4 (B9)](https://smartcdn.gprod.postmedia.digital/driving/wp-content/uploads/2018/09/unhaggle-a4.jpg?w=400&crop=1&strip=all&quality=90&sig=ivn0-cLB8WWpnLoLX1F6bg)
Used Guide: 2017-2021 Audi A4 (B9)