Use stock parts till you get past the 2 into 1.I wouldnt go with a header unless threre is something wrong with the ex manifold.not worth the money in my opinion.the truck is going to LOVE the bigger pipe.best mod Ive done

oh what a feeling:
#1 86 xtra cab 22R,EB 261 cam ,Hooker header,2" ex with cherry bomb, Aussie powered
#2 86 sr5 4x4 efi parts truck
#3 87 2wd parts truck
84 supra yard art