Has anyone tried to replace exhaust manifold on the d series toolcat? Mine sounds like a old Chevy 350 going down the road and is pumping out fine particles black exhaust soot and I have to replace the air filter every 50 hours. Im pretty sure you would have to take the cab off to replace it??? I was quoted $1500 from bobcat which to me didn't seem that crazy for all the work that probably needs to get done. 5600 d series 2010