Yes, I finally got them cleaned out. I did a further inspection and they were being restricted in the lower area close to the frame buy the lower rear a-arm mounts. I took both pipes to my work and submerged them into some Extremely heavy duty parts cleaner solvent and let them soak in it for a couple of days and it dissolved all the carbon build up without me having to put any type of effort into it. I’ll be reinstalling the pipes sometime tomorrow.