The present invention provides a noise attenuation assembly having at least one noise prevention pad disposed within an annular gap formed between a gas passage tube and an overlap tube. The support section has a support post, a hinge section and a receiving member. The mechanical advantage device also operably moves the deck between a cutting configuration and a maintenance configuration. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated crackingsulfur reduction catalyst.