Sacrilege! Weekends are for boozing and car shows...
PM'd benny! Thanks guys
Well it's generally regarded as a good idea to have a link between the two banks of a V8 as you always get a pair of sequential firing pulses from each bank.
The join (x or h) lets these even out. Beau's will burble much more as there is no balancing between his pulses (ooooer). If it has any measureable impact on anything else is a moot point.
C
Beau's still has the original X section remember so there is mixing of pulses. An H is more like a straight through as the balance pipes does less mixing at higher revs.