The product is specifically designed and manufactured for custom tuning of medium and large motorcycles or on automobiles (particularly suited for visible mountings). It has a sleek Italian design – the visible face is completely chromed with a professional high quality OEM finish able to resist 400 hours of salt fog exposure. -The product is more water tight than Nautilus Compact in order to better resist high water pressure spray washes, inclement weather. -The metal parts are powder painted black. -It is supplied with a 90 degree female connector and a black rubber tube (optional) to use for installations which particularly expose the product to dust . -Extremely compact (one single unit) therefore easy to install. -High and Low tone harmonized sound. -115 dB/139 dB (at 2 meters/at 4 inches from the source) High Powered Sound, more than 3 times (+10db) the power of a typical single tone OEM factory horn. -High audibility and sound attractiveness that only air horns can guarantee. -Highly reliable…designed and manufactured to guarantee top performance at temperatures between -30 degrees and +80 degrees centigrade and to pass the function test of at least 50,000 on-off cycles. -Available also in the “all black” version -Available with red or black painted inner trumpet mouths -Box packaging -For other technical characteristics please see the “Nautilus Compact” technical sheet. Important Notice: We strongly advise the consumer to follow in detail the suggestions and requirements of installation in order to insure the correct function and performance of the product.

Keep this in mind: sound energy doubles for every 3 points you go up in the decibel scale. It means that the Stebel which produces 139 dB of sound, puts out a LOT more sound than these popular horns:
– 800% of the sound energy of the more expensive FIAMM Freeway Blaster

– 600% louder than the 130 dB Pro Pad Mini Beast horn;
– 650% louder than the 128dB Rivco dual trumpet horn.