Kit Horsepower Inc. Stage 1 - 17-24 Softail ST
Unlock the beast — Air + Exhaust Performance Bundle
Dominate the street with this twin-upgrade package engineered for maximum roar and raw power. You’re not just tuning your ride — you’re raising the bar.
What’s inside:
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The HPI V2 Air Cleaner (Plain Black, fits ’17-’23 Milwaukee 8): high-flow design with velocity stack for uncompromised air intake — hits ~428.95 cfm @ 28″ for improved throttle response.
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The HPI Performance Exhaust (fits ’17-’24 Softail ST): handcrafted in the USA, TIG-welded stainless steel, perforated muffler interior — built to amplify your ride’s note and free up real power.
Why you want this combo:
- Fuel your engine with more air, then let it breathe out loud — improved flow and attitude.
- One streamlined package: you install the air cleaner + the exhaust, and your bike’s transformation is complete.
- Zero fluff: built by HPI with serious hardware.
Fitment & essentials:
- Air cleaner: fits Milwaukee 8-engine models from 2017-2023.
- Exhaust: fits Softail ST models from 2017-2024.
- Recommend professional tuning or ECU remap after install for optimum results.
- Check local regulations on exhaust noise / emissions before riding.
Final word:
You’re building a ride that turns heads and commands respect. This bundle doesn’t just upgrade parts — it upgrades presence. Make your machine loud, fast, and iconic.
SKU :
Vendor Part Number :
Approval certificate :
It depends on where you are located and what you ordered. Here are the estimated delays :
- France orders will arrive within 3 to 7 business days
- Europe and international orders will arrive within 7 to 10 business days.
Some products are in stock others are not, we have different level of stock :
- In stock : Shipped within 24h / 48h.
- European stock : Shipped within 48h / 72h.
- USA stock : Shipped within 3 to 5 weeks.
- Pre-order with ETA : Shipping according to the estimated date.
- On order with specific delay : Shipping based on availability.
France Orders :
- France Standard : 0.00€ to 99.98€ = 6.90€
- France Standard - Free : 99.99€ and up = FREE
Europe Orders :
- Europe Standard : 0.00€ to 99.98€ = 18.90€
- Europe Standard - Free : 99.99€ and up = FREE
International Orders :
- International Standard : 0.00€ and up = 54.90€
Sometimes we are quick, sometimes we are not but we have never missed an order. Please be patient, you will receive an email with the tracking information.
If you still want to complain about your order not getting here quick enough and want to send 25 emails about why its not here yet, please email us at info@holydeath.com.
Some items may ship from different warehouses, which can lead to separate deliveries. Don’t worry—your remaining items are still on the way, and you’ll receive a tracking update as soon as they ship.
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn (no "new" smells) or unused, with tags, and in its original packaging. Parts once mounted cannot be returned. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at info@holydeath.com.
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days.
Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at info@holydeath.com.
Customs Duties & Taxes
No. All orders ship from within the EU, so you will never pay customs duties or additional charges. The price you see at checkout is the final price—no surprises.
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