the stinger will increase low end but wont help much on the top end
i am thinging of using this pipe and header for my rustler MIP 3042 its for an on road car BUT from what me and the guys at my LHS see it looks like it will clear the ez start system and do away with the 3 inch long piece of rubber hose i have gone through a few of those myself and i am getting tired of it LOL

http://www2.towerhobbies.com/cgi-bin...?&I=LXAX70&P=7 looks like the one i saw at the LHS but its black LHS price was about $9-10 cheaper