46u - Thanks for the quick reply. I was also concerned about hitting the Tsais pipe while bashing but judging by this picture :
http://www.tsais.com/products/exhaus...19/NDMT204.jpg
it looks to me like the pipe may be protected by the size of the wheels or worst case the stinger would get hit. That is something to consider though. I should probably just go with the associated pipe that you suggested since after a while I'll be upgrading to the OS engine that you all run and would need a new header at that point anyway.

Another question that I have is, which steering servo do you use? I'm considering getting a Spektrum DX2 since I want to upgrade my radio and servos. The radio and servos I'm using now are from an old electric car that I had.

Thanks again for the help.

Pete