Are dynomax super turbo mufflers worth the cost?

Unlike many of the folks here, I'm old enough o remember the 60's cruising scene in Tidewater, VA. Back then, you could always tell, when a 340 cruised through the local Shoney's or passed you on the highway. It was very distinctive. As I work to complete my 340 Sport resto, I'm gonna be looking for that original sound, or as close as I can get it considering the engine mods I've done.