Description from the Malossi Website (doesn't say anything about performance expectations):
MAXI WILD LION EXHAUST SYSTEM
Beautiful! Technologically perfect: with their strong character and such an aggressive shape, they give a touch of “High-Class” to the maxi scooter enhancing it in a superlative way.
Thanks to the great development of Malossi Engineering’s technical staff (utilizing the most up-to-dated labs) and with extensive racing experience, Malossi wanted to make a significant difference by incorporating the following design requirements to the new MAXI WILD LION exhaust system: innovative look, performance, lightness, reliability and QUALITY.
The new Maxi Wild Lion Exhaust Systems come complete with all the necessary mounting hardware and gaskets.
Aluminum alloy casing with anodized titanium finish, elliptical cross section. Stainless steel end caps with laser logo markings. A “chicane” silencer system with the addition of sound absorbing mineral fibers, possessing high noise damping and non-degrading qualities. Stainless steel exhaust tubes from the cylinder or to the silencer. The final assembly utilizes stainless steel riveted clamps producing a sealing area of exceptional mechanical strength in turn eliminating any exhaust gas leakage. This assembly technique is often seen on more expensive racing exhaust systems. The exhaust-mounting clamp is made of stainless steel and is available for high or low mounting.