How to make my 2015 Audi a8L 4.0 faster?

They said you can inc hp by 40 by a chip. I have a 2015 Audi A8L 4.0 with 435 HP and 444 torque. What are all the different ways I can inc my audi HP and torque?

maybe a chip? I found a chip that inc 40 HP. With chips 40 is the max? Or there are any better chip?

I am new to this kind of stuff so plz do add much details as you can. Thank you

 

Not really much you can do with an NA petrol, cheaper to sell and buy an S8.

 

I just traded in my 2011 A8 for the new A8 Sport. Will pick up tomorrow. Performance looks very good!