DSE Mini Tub Kit

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Any one installed one? Can an average Joe with decent skills install one?
A Buddy just got his kit and watched the video and he said I looks very hard and you have to fab up some parts,what is that all about I thought the kit had everything in there.
Do you guys suggest a profesional installer. Any one know some one in Miami Florida? How much should this cost?
I'm getting the video tomorrow hope It does not scare me as much as it did him.
Thanks in advance.