the upper section would bolt on, but the lower 'downpipe' section would require a new section making.
Also you would have to move anything on the bulkhead out of the way, as the upper section takes up ALL the space.
my advice would be go for the regal 4-1 as it will bolt straight on without any mods, unless you have the patience to fit the better 4-2-1.
Took me about two weeks to get it fitted on my vec, hopefully won't be as long on my vx220 :lol: