[JL8Jeff]

LS1 emission's headers are definitely easier than LT1 emission's headers. With that being said, it all depends on how prepared you are for the swap and if you have all the little parts lined up and ready to go. Are you planning on keeping the full emission's on the car(AIR and EGR)? The 98-99 cars had a different AIR mounting(90 degrees rotated vs 00-02) and the 00 is a one year only combo with the correct AIR mounts and EGR because 01-02 don't have the EGR. Having a shop do the header install with everything hooked up and cats welded into the y-pipe I would expect $400-500 as the going rate. I would suggest doing the motor mounts like someone else mentioned. I should have done it and I still need to go back in at some point. The engine rotates pretty good with stock motor mounts and the driver's side header will most likely hit something when you accelerate.