dynatech supermaxx

[B-MAC]

any one have dynatechs supermaxx system on a 2500HD 4x4?is there any welding or fab needed,I dont mind cutting but I have no way to weld anything.Also anyone know how it would mate up with a corsa sport cat back?Ineed a setup with cats,I think the supermaxx would sound badass with the corsa . Whats the best price youve seen?I checked several gps and its still very expensive