Recently installed a jackal stage 1 tuned ECU in my 2004 Audi S4 4.2 V8. Only power modifications are the tune, MagnaFlow cat back, and a drop in k&n filter. This is a launch with 3 people in the car and it has a full interior, working ac, full size spare, and a sound system so it's pretty weighed down. It also has 19" wheels instead of stock 17's and a Brembo big brake kit. Overall, not bad for an 18 year old 4 door sedan.
