In an attempt at light humour instead of angry faces, I'm wondering if this is what the OP meant when he said "got a chip inside the car"
In honesty though, billy-bolt-on's as engine tuning must be the worst things you could do to an engine as there's no factual evidence, proof or graphical results to confirm yes "your engine is still operating safely whilst it's putting out more power than it should". Running an engine lean will give you more power too, but it will generate more heat and likely break. Lean burn can melt pistons btw. I've seen an engine which was happily cruising under the speed limit on the motorway whilst melted one of it's pistons completely.
This is not to say your engine cannot handle it, but what about the other components? My old E30 325i ripped through it's sub frame and 2 engine mounts with the mainly stock engine
