To put it simply- YES!
yes.
no
NoNo
No
No, they will not fit the exhaust port holes are different.
No different exhaust lengths and bends that's like saying can a limo exhaust fit on a pinto
just the exhaust will fit. The entire catback is different.
pretty much any 454 exhaust manifold will fit
Will the exhaust pipes for a Honda shadow 1100vt fit a Honda shadow 2012 750
No it will not fit.
The 1988 Honda CRX was a new generation of the model. The exhaust from a 1988 will not fit on a 1987 model.
A 5.76 car exhaust manifold will fit a 1997 350 Vortec. Your local auto parts store or car dealership will be able to give you a detailed list of all car exhaust manifolds that will fit.