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Exterior Components› Decals and Moldings

Kleinn Air Horns

Kleinn Ultra HK9 730 Horns BlastMaster Valve Upgrade Kit

$259.94 $199.95 Save $59.99

SKU: K00Y 6890

In Stock
In Stock
Ships by Jun 9
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Kleinn Air Horns 6890 Ultra BlastMaster Upgrade Kit is designed to enhance the performance of the Model 730 Demon Train Horns. This kit increases airflow and significantly boosts decibel levels by adding two VX6003 solenoid valves. It ensures each trumpet has a dedicated air source for dramatically increased flow.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

Available on iOS & Android

Specifications

BrandKleinn Air Horns
Part NumberK00Y 6890

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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