Im into the 2nd year of owning my s1 205 gti so I am relatively new to the scene. I am wondering if anyone can list off some of the advantages/disadvantages of running an after market ECU on one of these engines.
My main appeal to the idea is having a tidier engine bay (sounds crazy I know) so I was also wondering what components would I be able to part with after losing the OEM ECU. The vehicle is far from being able to be brought back to original so I am fine with modifying anything.
From what I have read, Haltech 500 seems to be a pretty good ECU, but at $900 is it going to be worth it in the end.
Any help would be greatly appreciated.