The ASM Siren Circuit Exhaust is the most expensive S2000 exhaust available. It's $4,000 and made of stainless steel versus something more exotic like titanium. It's also only a 60mm exhaust versus more free-flowing 70mm, 76mm, and 80mm exhaust options.
The Siren exhaust is the one on the lower left. The lower right exhaust is their traditional 70mm single exhaust.
This exhaust is all about civilized sound. The ASM owner took me for a ride in their white/orange car around Yokohama and it's an amazing exhaust. Subtle and quiet to stay within strict Japanese db laws. Zero drone. Even clean sound throughout the RPM range. Signature dry ASM exhaust sound from special resonance chambers versus traditional exhaust packing. It's amazing exhaust engineering.
Check it out at ASM's site
I am excited to see this. Pretty cool! I like your Car Exhaust Muffler
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