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Overview
  • Aftermarket high-performance horns provide an audibly louder, and often more accoustically pleasant sound than stock horns. Many are lighter than stock ones too. Stock horns typically output at around 97 dB. Since that the decibel scale is logarithmic, the sound pressure doubles for every increase of 3 dB points, i.e. a horn with 118 dB is approximately seven times as loud as a stock horn. Air horns use a reed and have a trumpet like sound. The components are larger and more difficult to mount in today tightly packed engine compartments. Air horns should be mounted pointed forward and slightly down so that no water builds up in them. Diaphragm horns vibrate the diaphragm to make a more brash sound. Most OE (original equipment) horns are of this type. Because of their smaller size, they are more versatile to mount. Last but not least, most of the horns you'll find on this page are of the newer compact trumpet type. We hereby present to you various brands of better quality & louder automotive horns. Many models were only available in Japan until now. Please allow 3-4 weeks for delivery for JDM (Japan Domestic Market) horns. Check out our JDM Order Deadline Calendar for schedules.

    Reasons to upgrade:

    1) Safety: As mentioned earlier, aftermarket horns can be substantially louder thus they catch others' attention easier. Some times a tad bit extra attention is all it takes to avoid accidents.

    2) Acoustics: One's potion can be another's poison. Person A may find a specific frequency soothing but this same frequency can be ear-wrecking to Person B. Thus listen up before purchasing whenever possible.

    3) Uniqueness: Today's factory horns all sound alike, i.e. dull, just spice up your horns' tone if you want to stand out from the bunch. This also translates into extra safety while being unique & different.

    4) Asthetics: Look carefully through the opening of the front grille & you shall see the black factory horns in there. Why make them so subtle & bashful is beyond us. Swap them with a red pair & your ride instantly looks like it has a bloody nose. Install LED lighting & the blue/chrome ones now even glow. Horns can dress up your ride very prominently.

    About the makers:

    Mitsuba is an first-tier OE Japanese manufacturer for many automotive components like LED signal lamps, horns, etc. They make beautiful horns (looks and sound) and is considered as the top horn maker in Japan. They have over 100 years of making horns and their products are used widely by car makers. Just browse their latest selection here and you'll agree right away.

    Bosch horns and fanfares are made from high quality materials, and can be relied on to deliver an unfailingly pure warning tone even under the toughest conditions. There are two types: both systems generate a warning signal by a different method and have different sound characteristics. Either one can be easily fitted to any vehicle. Our extensive range is suitable for all applications from urban commuting, to louder systems for emergency vehicles and motorway driving. Whichever type you choose, you can be sure of Bosch's quality of build and the reliability you expect of a vital warning system.

  • Resistance to strong vibrations and mechanical shocks.
  • Operating temperatures from -40 °C to +90 °C
  • Pressure regulating valves.

    Maruko specializes in fabricating automobile horns & automobile horns only. They supplied to major auto makers & aftermarket tuners in Japan, which in turn market their products both domestically (in Japan) & globally. This relationship w/ major players allows them the advanced technologies & R&D funding to make high-performance, high-quality, compact, low cost & lightweight horns. Their factory is also considered to be very worker-friendly, heavy on recycling, & environmental in general.

    PIAA Horns have been developed from PIAA's competition involvement in the Paris Dakar, where the PIAA range of products have featured on the winning cars for the last 6 years. Designed to work effectively in the most arduous conditions, they are also ultra light weight with a weather shield on the front to help prevent dirt and water getting into the horn. This is unique to PIAA. Having their own distinctive sound they operate at an attention grabbing 115db. They can now be fitted to competition cars all over the World as the FIAA and in the UK the MSA, who previously permitted only air horns, now permit the use of these electric horns.

    Sun Automobile makes high quality electromagnetic horns, all are ECE certified with 1-yr warranty. To promote the environmental preservation activity systematically and continuously, Sun Automobile Co.,Ltd.( headquarters) and Sun Craft Co.,Ltd. acquired the ISO14001 attestation which was an international standard of environmental management.

    Horns have a long tradition at Hella. Hella has been developing and manufacturing acoustic signal units on the highest technical level for almost 100 years.

  • Disc horns make a relatively hard sound which is radiated mainly forwards. This achieves good penetration of the traffic noise over a great distance. The sound pattern works best as a set with one high tone horn and one low tone horn.
  • Supertone horns are particularly suitable for extreme conditions since they have a greater penetration force due to their size and more powerful electrical drive.
  • Quality is extremely important at Hella. Safety products such as horns demand top precision and reliability. Hella products not only comply with the strict legal regulations but also with the much more demanding requirements made by vehicle manufacturers and the aftermarket. It goes without saying that all Hella horns have ECE type approval.
  • Gallery -
      High-Performance Horns -
    - Mitsuba Alpha II Compact - Traditional European sound horn in the 480/400Hz. Despite its small size, it outputs at 113dB / 2m (or 119dB / 1m & 102dB / 7m). 40% lighter than Alpha II and 20% smaller in volume. Perfect for compact cars. 12V 4A x2. 84W x 90H x 58D mm. Made in Japan. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Rally Evolution Horns
    - Mitsuba Alpha II - Traditional European sound horn in the 480/400Hz. It outputs at 113dB / 2m (or 119dB / 1m & 102dB / 7m). Special 45° tilted opening for better sound control. Suitable for all cars. 12V 4A x2. 95W x 99.5H x 64D mm. Made in Japan. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Rally Evolution Horns
    - Mitsuba Air Barrett - A penetrating treble-inclined European sound horn at 580/480Hz. It outputs at 113dB / 2m. Special 45° tilted opening for better sound control. Suitable for all cars. 12V 4A x2. 95W x 99.5H x 64D mm. Made in Japan. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Rally Evolution Horns
    - Mitsuba Aero II Spiral - A quality, deep bass, European, echoing sound horn at 420/350Hz. It outputs at 113dB / 2m. Special 45° tilted opening for better sound control. Suitable for all cars. 12V 4A x2. 95W x 108H x 64D mm. Made in Japan. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Rally Evolution Horns
    - Mitsuba Slim Spiral - A European-inspired beautiful tone with powerful sound at 550/440Hz. Both treble and bass are combined. Despite its slim figure, it outputs at 113dB / 2m. Suitable for all cars. 12V 4A x2. 99.8W x 99.2H x 41.5D mm. Made in Japan. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Rally Evolution Horns
    - Mitsuba Proud Horn - Another European-inspired horn at a softer sound at 490/410Hz. Despite being a small size horn, it outputs at 113dB / 2m. Suitable for all cars. 12V 4A x2. 77W x 88.5H x 60D mm. Made in Japan. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Rally Evolution Horns
    - Mitsuba Alpha Horn - The best-selling Mitsuba masterpiece. Traditional European sound in the 480/400Hz range. Its 90mm horn diameter outputs a powerful 113dB/2m sound. Its opening is designed to spread out the maximum amount of sound over a wide area. 12V 4A x2. 104W x 99.5H x 73D mm. Made in Japan. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Rally Evolution Horns
    - Mitsuba MB-R Horn - Adopted by many OE manufacturers. A flat horn (only 35mm thickness) with powerful output at 112dB/2m. This design can be heard better at high speeds. 12V 3A x2. 100W x 100H x 35D mm. Made in Japan.
    - Mitsuba Arena III - A very unique electronically-controlled horn with 2 sound patterns (Pa! & Paaaan) at 480/400Hz range. You must hear it to appreciate it. Outputs at a powerful 113dB/2m sound via its 90mm diameter housing. 12V 4A x2. 95W x 99.5H x 64D mm. Made in Japan. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Rally Evolution Horns
    - Mitsuba Dolce II - An electronic horn with a super bass sound at 390/320Hz which is ideal for luxury cars. A bi-pattern sound at Pa!/Paaan. You must hear it to appreciate it. Outputs at a powerful 114dB/2m sound. 12V 4.5A x2. 152W x 137H x 98D mm. Made in Japan. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Rally Evolution Horns
    - Mitsuba Horn Controller - You can choose between 1/2/3 times to sound your horn according to your liking. LED-illuminated pad for night time viewing.
    - Mitsuba Power Relay - Capable of up to 25A for 12V system. It's a high performance power relay to enable the full performance of horns and lights. Its connectors can support continuous and intermittent use. One set for each horn.
    - Mitsuba Horn Harness - We recommend these heavy duty (thick) harness for maximum performance and fuse protection. From top to bottom: #1) Horn Harness Set handles up to 30A for 12V system. #2) Air Horn Harness Set also handles up to 30A for 12V system, it has controller response correction to compensate for the starting time of blowing air horns. #3) Easy Setting Kit is suitable for small horn. #4) Earth Code Set is suitable for horn that requires a ground wire. One set for each horn.
    - Mitsuba Horn Stay - These sets give you flexibility on horn mounting location. Zinc-plated surface for durability. From top to bottom: #1) Horn Stay Set gives you 32mm / 52mm / 72mm positions depending on the thickness of the horn. #2) L-Shape Horn Stay Set allows you to mount the horn from the top or to its side, you may even change the horn orientation angle, its 4mm thickness dampens vibration too, assymetrical L-shape design to give you 2 distances on mounting (33mm / 29mm). #3) Mounting Spacer Set prevents horn rubbing against mounting surface, each set includes 4 spaces of 5mm thickness each, speaking of flexibility... One set for each horn.

    - BOSCH Rally Evolution - Ultra-thin & light electromagnetic horns used on many European vehicles. Specs: 12V/48W x2 horns. Frequencies: 420Hz bass + 510Hz treble. Dimensions: 100mm diameter OD x 56mm depth. 249g each. Available in 2 colors. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Rally Evolution Horns
    - BOSCH Rally Strada - Ultra-lightweight electromagnetic horns used on many European vehicles. Specs: 12V/48W x2 horns. Frequencies: 420Hz bass + 510Hz treble. Dimensions: 80mm diameter OD x 76.5mm depth. 235g each. Available in 3 colors. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Rally Strada Horns
    - BOSCH Windtone - A large diaphragm and powerful deep strong European sound. The sound spreads far & wide and can catch some good attention while driving in the city. Specs: 12V/60W x2 horns. Frequencies: 420Hz bass + 500Hz treble. Dimensions: 111mm diameter OD x 81mm depth. 360g each. Available in 1 color. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Windtone Horns
    - BOSCH Air Majestic - A totally unique compressor + funnel horn design. Imagine the sound of a very luxurious classy and dignified-looking horn. Its great power ensures maximum road safety. Must use with optional heavy-duty Horn Harness (BSH-HORN). Specs: 12V 20A/240W x1 horn. Frequencies: 530Hz bass + 680Hz treble. Dimensions: 154L x 94D x 112H (mm). 715g each. Available in 2 colors. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Air Majestic Horns
    - BOSCH Air Fanfare Classic - A traditional fanfare design. A compact vibrating diaphragm generates high-frequency sound waves (with the help of a high pressure chamber) that expand outward via the trumpets. Must use with optional heavy-duty Horn Harness (BSH-HORN). Specs: 12V/240W. Frequencies: 795Hz bass + 840Hz treble. 750g each set. Available in 1 color. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Air Fanfare Classic Horns
    - BOSCH Super Horn Classic - A classic 1954 signature Bosch sound is brought back to life via modern technology. A powerful magnetic circuit with large diaphragm, the result is a far-reaching heavy yet beautiful sound. Body is made of special alloy while filter is made of teflon. Reliable & stable performance under all conditions. Must use with optional heavy-duty Horn Harness (BSH-HORN). Specs: 12V/48W x2 horns. Frequencies: 290Hz bass + 345Hz treble. Dimensions: 152mm diameter OD x 97mm depth. 1500g each. Available in 1 color. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Super Horn Classic Horns
    - BOSCH Valiantone - A unique magnetic circuit engineering that generates a traditional, powerful, hard-edged sound. Eye-catchy body design and teflon filter. Reliable & stable performance under all conditions. Must use with optional heavy-duty Horn Harness (BSH-HORN). Specs: 12V/50W x2 horns. Frequencies: 300Hz bass + 375Hz treble. Dimensions: 140mm diameter OD x 80mm depth. 1000g each. Available in 1 color. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Valiantone Horns
    - BOSCH Buzztone - A traditional big punch super sound. Teflon filter. Reliable & stable performance under all conditions. Must use with optional heavy-duty Horn Harness (BSH-HORN). Specs: 12V/48W x2 horns. Frequencies: 325Hz bass + 400Hz treble. Dimensions: 156mm diameter OD x 90mm depth. 1170g each. Available in 1 color. Click on lower speaker to hear how they sound in .wav format.
    BOSCH Buzztone Horns
    - BOSCH Horn Harness - By now you must realize how we stress the importance of using heavy-duty horn harness when upgrading your horns. We may not accept your BOSCH horn orders without seeing that you also order the appropriate horn harness. Please consider the safety of yourself & others. Available in 2 models. Click on left thumbnail to see bigger picture.
    - BOSCH 24V Series - 24V Series horns are sold in single-pack. Must use with optional heavy-duty 24V Horn Harness (BSH-RV-5N). Specs: 24V/50W x1 horn. Frequencies: 300 or 375Hz depending on models. Dimensions: 140mm diameter OD x 80mm depth. 1000g each. Available in 4 models. Click on left thumbnail to see bigger picture.

    - Maruko Hi-Way Flat Horns - A very powerful magnetic horn w/ precise core machining. This is the top-of-the-line model in the Maruko line. Constant voltage: 12V. Current consumption: 12V:4Ax2. Sound level: 115dB. Frequencies: 280/330Hz (L/H). Weight: 2x 1,500g. Size: 81mm depth x 155 diameter. Available in chrome or black. Made in Japan. Click on lower speaker to hear how they sound. Link requires FLASH player.
    Maruko Hi-Way Flat Horns
    - Maruko Disk Type Hi-Power Horns - Adopting the Type M design enables this horn to be compact, lightweight, yet high volume. Double horns fit in even small spaces in the engine bay. Constant voltage: 12V or 24V. Current consumption: 12V:3Ax2 / 24V:1.5Ax2. Sound level: 113dB. Frequencies: 350/420Hz (L/H). Weight: 2x 145g (12V) / 2x 150g (24V). Size: 34mm depth x 72 diameter each. Available in black. Made in Japan. Click on lower speaker to hear how they sound. Link requires FLASH player.
    Maruko Hi-Way Flat Horns
    - Maruko Trumpet-Type Horns - All models made in Japan. Click on lower speaker to hear how Model V sounds. Link requires FLASH player. 4 models in this line to choose from:
    Model V: Water-proof w/ UV-resistant blue color. 12V, 2x 4 Amps, 115dB, 500/400Hz, 2x 195 grams, 78mm depth x 75 diameter.
    Giga: European-style spiral horn sounds in eye-catchy red color. 12V, 2x 3 Amps, 113dB, 500/400Hz, 2x 180 grams, 69mm depth x 75 diameter. This is very similar to PIAA Sports Horns.
    Super Giga: Black body & louder ver. of the above. 12V, 2x 4 Amps, 115dB, 500/400Hz.
    Super Low: Black body stunningly low bass horn. 12V, 2x 3 Amps, 113dB, 400/330Hz.

    Model V Giga Super Giga Super Low

    - Toyota Premium Sound Horns - This is a JDM Toyota/Lexus factory upgrade option. It provides a orchestra-like, high-class 400/500Hz tone that makes stock horns sound dull. Made in Japan. Click on lower speaker to hear how they sound. Link requires FLASH player.
    Sun Auto Power Horn

    - PIAA Sports Horns - Replace your tamed factory horns with these louder & tenser PIAA ones. All-weather water- & dust-proof covers (first in the aftermarket industry) with 115dB output. Each horn weighs a mere 194g. Made in Japan.
    PIAA Horn PIAA Sports Horn 400/500Hz
    - PIAA Slim Sports Horns - New slimer profile to fit in tighter spaces. Super slim depth of 39.8mm only. 112dB output. No wiring harness is required.
    PIAA Horn
    - PIAA Superior Bass Horns - New 2012 model to enable a deeper bass tone. 112dB output. No wiring harness is required.
    PIAA Horn

    - Sun Auto Power Horns - Sun's Power Horn series gives you that high-class sound. New 2008 PH002 line is 23mm slimmer than PH001. All outputs in 110dB. Click on lower speaker to hear how they sound. Waterproof connectors. Made in Japan.
    Sun Auto Power Horn Sun Auto Power Horn

    - HELLA Twin Tone Horns - HELLA Japan special model for the 2012 JDM market only. Zinc-plated metal housings and plastic trumpet. Anti-corrosion engineering. Small, thin, powerful and reliable. 110dB output in 400+500 Hz. Body size: 93 x 95 x 56.5 mm.
    - HELLA Twin Supertone Horns - This is the gold standard for aftermarket horns and their red faces can be seen peeking through the grill of almost every Subaru WRX on the road. The kit includes 2 Disc-type Horns, a relay, and mounting hardware. Best for freeway use as pattern is narrow and projected forward. So great for warning other trucks that they're about to run into you. Production of this horn has recently been moved to Hella's wholely owned plant in India. Outputs at 118dB @ 2 meters w/ frequencies 300/500Hz. 12 & 24V models.
    HELLA Supertone 24V in Black
    - HELLA Compact Trumpet Horns - Works very well in town. Outputs at 110dB @ 6 feet w/ frequencies 400/500Hz.
     
    - HELLA 2-Trumpet Air Horns - Outputs at 118db @ 6'. 240W. The Large horn tone is 795Hz tone and the small horn is 840Hz tone.
     
    - HELLA 3-Trumpet Air Horns - Outputs at 118db @ 6'. 240W. 2 models for different tone patterns, see below for more detals. There are large horn, mid-sized horn, and the small horn.
     

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