Sorry, this has probably been discussed to death in here but... I'm a noob, what can I say?
Anyway, my bro was just nagging me to look up mod-chips for my 2001 A4 Avant
1.8T Sport "for a laugh" and I stumbled across the Revo stuff which appears to be a soft-mod as opposed to actual chipping.Anyone know if this is any good and can it cause damage to the car?
I've also seen these much cheaper booster control things:
Cheers!