5.Br0down
Bahahahaha riiiiight. My Mystic Z lost to a tune/bolt on 2013 A6 5.0 just like yours, by about 10 feet. 50 to 150mph. Car dynoed about 385rwhp. Something is clearly up with that C5.
You think **** can't get fucked up in 40k miles if it's not maintained properly, or abused? My Mystic Z has 175k on it and still runs just like it did when I got with 99k. Because I know how to take care of an engine, Broski.
Glad to hear it, Br0mosapien. Must be all of those Lucas oil products





