Curious. I've heard a bunch of people talking about "loud Spintechs". I'm running them on my build. A bit over 600hp, 11:1 compression, 3" exhaust all the way from the headers, through the X-Pipe, through the tail pipes. It's even a convertible. It gets maybe a little loud at WOT, but not what I'd consider real loud. Mine are the short ones sold by Ram Air Restorations. They're a 12" case built to Ram Air's specs. They're similar to the Sportsman 3000 I believe.
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