i was running the quarter mile the other day in my apr chipped 1.8t Gti 2000, and i was next to my friends 2.5 rs with a bunch of mods... and well we were side by side going into third and we both know mine will pull in 3rd so i was just about to pull ahead and take off when i got to about 4300 rpms my turbo jolted and then dropped off back to 3000 rpms... so i got screwed. But later i ran my car through same set of rpms and it was all good.... so what happened and how can i fix it?