Hey everyone,

I've had my 2026 G63 for about 3 months now and I really love the car. The only thing is the power feels a bit lacking. I'm thinking about doing downpipes and a tune.

The issue is there aren't many tuning options available on the market right now. I don't want to go with a flash tune since it could affect the factory warranty.

I tried RaceChip, but for some reason it didn't work at all. Not sure if the unit itself was defective or if their development isn't fully sorted yet, but it was completely non-functional so I had to return it.

Just wanted to ask if there are any other reputable options out there? Like Renntech or others that won't affect factory warranty (or at least minimize the risk)?

Appreciate any recommendations, thanks.

 

Surprising to hear it doesn't have enough power. Are you keeping the throttle to the floor?

 

Lol it’s relatively slower than my other cars, and I do have tune on most of my cars.
Just wanna tune it without voiding my warranty.

 

Normally the tunes lean it out and its negligible gains unless you can get more boost. That is where you'll make more power but at some point might as well step into a sports car.

 

Only tune I can find is Brabus for w465. It’s about 10k with shipping.