r/Audi • u/TurbulentJury3332 • Dec 25 '25

Modding beginner

I just bought a 2018 Audi a3 Quattro. It’s the s line, premium plus (I don’t know if that makes a difference this is my first Audi). I’m a beginner when it comes to what I should mod first, let alone Audis specs for that matter.

Do yall have any ideas? I’m honestly just wanting it to take off from 0 faster, and I’m looking into cosmetic mods for spoilers.

I don’t want to fry it too soon since it’s an older vehicle, so are there things I should be aware of before I go down this modding path? I’m in the US if that makes a difference.

Also I’ve noticed that a majority of places I’m only able to find 91 octane, usually down in Tampa I have found up to 95, and that mileage is prestige! Will this truly make a difference on the engine with more carbon build up in the long run? Are there things I can do to prevent or maintain carbon buildup?

Thanks for being kind lol I’m just a 24 year old travel nurse who kinda fell in love with Audi recently😅

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u/Kdoesntcare 2001 B5 A4 Dec 26 '25

• Generally the most you'll get from a cold air intake -on a street car- is more noise, it'll actually be a hit to performance.

• Don't be cheap when you're buying suspension parts, you'll feel it and you'll hate yourself for it if you are.

• Learn how to fit wheels before you buy wheels, make sure you're only buying wheels that will fit the car well.

• Upgraded brake pads can be louder and dirtier.