Who cares what brand it is? It's the same stuff with a different label.
How about $9.88/can (or $8.48/can if you buy at least 8 of 'em).
STINGER ROADKILL ACOUSTICAL DAMPING SPRAY BTW, I'll bet those dealers are paying about $5CDN/can and then selling it for that $30-50CDN/can. The markup on anything car audio is unbelievable.