B9 A4 Quattro S-line, 45 TFSI 2.0L - Suggestions?

[KenzoN]

I am looking to get into my engine bay a bit just to see what mods I can make without going straight to a stage 2 tune. I'm not trying to do anything super complicated, just wanna try and make a little more power and get some experience tinkering around. My A4 is currently IE stage 1 tuned with an exhaust and a cold air intake. To be totally honest, I don't really know enough about engines or cars in general to know what I should do next/focus on, so some guidance would be really appreciated. Thanks.

[Millzy32]

I am looking to get into my engine bay a bit just to see what mods I can make without going straight to a stage 2 tune. I'm not trying to do anything super complicated, just wanna try and make a little more power and get some experience tinkering around. My A4 is currently IE stage 1 tuned with an exhaust and a cold air intake. To be totally honest, I don't really know enough about engines or cars in general to know what I should do next/focus on, so some guidance would be really appreciated. Thanks.

If you end up wanting noise you should go IE Stage 2 with their High Flow Catted Downpipe. If you don't like heat soak you should get an upgraded Intercooler. The factory one is very tiny. If you like to hear funky sounds get the Turbo Muffler Delete and the GFB upgraded Diverter Valve and even an Intake. If you want quick shifts get the Unitronic TCU Tune and yes it works with other ECU Tunes just fine (Also lets you do 4k rpm Launches which will spin all 4 tires).

[1killera4]

Intercooler.

[2023a5sline45]

What year??

[Millzy32]

Intercooler.

Agree that this is a must if you plan to dog the car at all.

[KenzoN]

2019

[KenzoN]

Will the Unitronic TCU tune cause a CEL?

[Millzy32]

Will the Unitronic TCU tune cause a CEL?

Are you asking because you don't want the car to be known to be tuned? I don't think there's anything you can do to hide any type of tune ECU or TCU at this point. They are computers and they have permanent memories so if someone wants to find out they'll find out. If you are asking whether or not it will give you a check engine light or some warning it definitely will not. It also allows you to launch at 4k rpm and if you're still stock ECU it will likely make you much faster on launch. For me at Stage 2 it spins all 4 tires so not really thinking it makes me faster just fun. Maybe it's because I could use new tires and I run All Seasons.

[Spawne32]

Will the Unitronic TCU tune cause a CEL?

Unitronic TCU tune wont work on a 19.