Audi s3 8v tuning


i just bought my first audi and i am very new to tuning. Here in south africa many people tell me not to do a ecu tune because
i will lose my warranty!

Is there any tuning solution to keep my audi warranty?
I heard piggy back from Burger or Neuspeed wont void your warranty but you'll only gain like 35hp
That's a real healthy increase with the Neuspeed piggyback.
Would love to get this thread up to date. I'm a soon to be s3 owner, ordered, and currently drive a 2017 golf r. I have noticed that GUI and golf r forums are loaded with mod threads. Seems less s3 owners are tuning their cars. Would love to hear from those that have. I have stage 2'd an m235i and plan on doing the same with the s3. I will do spacers, springs and resonator delete on day one. Would love to get people's impressions on low vs high torque for a dog car. Actually I would like to hear about all mods done to your s3. Hope to hear some new voices soon.