T-t-t-t-t-t-t-techno time...

:
The only reason the chip will 'blow' is if it draws too much current (i.e. short circuit/very low resistance or impedance), therefore the only thing responsible for the superchip going WABOOM is itself.
Now that could be down to poor design, manufacture or the fact it's a shit device off ebay. When you refer to 'Superchip' are we referring to the tuning specialist that charge around £500 or the wank variety off the 'bay?