well today was the day. i had my trinty pipe, headers and jetting installed today. took almost two hours. it was a little complicated. but for $40 bucks a buddy did mine. it was his first z400 he has done. he does raptors by the numbers. didn't even mess up one of those brass screws, even though the last one was the hardest to take loose. can you say LOUD? its a beast, but still couldn't take my buddies stock raptor. i was one link behind almost all the time. (Darn it!!!) hes getting his done too. so i really will be behind. i took it out to my cousins and had some pics taken. its a jumping mudder fudder. look at my picture in the link below. we measured my jumps at 38ft. thats one steep jump and only in second gear. i did however out jump the raptor. ha-ha. speed isnt everything!!! if you have any questions on installing the jetting dont ask. Call trinity. i was surprised on all the stuff you had to do. that stock pipe was difficult to take off at first.