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Air and Fuel› Nitrous Oxide Systems and Components

Kleinn Air Horns

Kleinn Triple Black Horn Kit w/ 150 PSI Waterproof 5.0 gal Air Tank

$1,533.94 $1,179.95 Save $353.99

SKU: K00Y HK9

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In Stock
Ships by Aug 2
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: HK9

Our biggest and loudest train horn system! The Demon Model 730s massive & detachable XCR 2.0 spun steel trumpets (18.25, 14.75, 10.5) allow tons of installation options. Includes a high output 150 psi, 100% duty compressor, 5 gallon tank and tire inflation kit with storage bag. Can power your horns as well as other accessories like air bags and small air tools. -For the clinically insane, the 730 can be upgraded by adding an Ultra BlastMaster valve upgrade (P/N 6890) making it the loudest, largest and most aggressive train horn on the market.

ProBlaster ultimate triple train horn package w/730 horn, 5-gallon tank and 150 PSI air system.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

The Demon 730 stainless steel horns provide a powerful sonic roar. Featuring XCR 2.0™ coated horns for durability, these can be mounted on a flat rack or individually for flexibility. Powered by a 6450RC waterproof compressor, this system is an integrated onboard air command center, capable of loud blasts, inflating 37" tires, managing air bags, or engaging lockers. The HK9 includes all components of the HK9-Slimline kit but with a larger 5-gallon (6450RT) air tank for extended horn blasts and faster tire inflation.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandKleinn Air Horns
Part NumberK00Y HK9

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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