Elise S 2ZR-FE ROAD Exhaust System
Once you open up the exhaust on this car, it's surprisingly NOISY.
I've dropped the 7"diameter system altogether, kept the standard 8"diameter for road cars and designed a new H1 8"diameter system for quieter running on long journeys and in noise-averse countries like Switzerland.
This takes the H1 - (one Helmholtz resonance chamber) - feature from the track exhausts and incorporates it into the silencer internals. It's good for a 3-5db's drop in noise. You can see the internal spot-welds around the double-skinned chamber at the inlet end of the silencer.
SELECT "H1 CHAMBER" IN THE BOX BELOW FOR THIS QUIETER VERSION.
It still makes the car sound like it looks - just keeps it that bit more under control - no dronnnnnnnne with the 2bular. Drone only happens when the design is flawed - wrong bore/low quality packing materials etc