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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 25 - Jul 30
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Air Lift ALP4 Air Management SystemThe ALP4 air management system redefines whats possible for air suspension control, combining cutting edge hardware with smarter, more seamless functionality. This system features a compact, all in one manifold, which houses the ECU, solenoids, and pressure sensors, crafted from anodized black billet aluminum for durability and a sleek, show ready appearance. Paired with a full color touchscreen controller framed in anodized aluminum and equipped with
The ALP4 air management system redefines what’s possible for air suspension control, combining cutting-edge hardware with smarter, more seamless functionality. This system features a compact, all-in-one manifold, which houses the ECU, solenoids, and pressure sensors, crafted from anodized black billet aluminum for durability and a sleek, show-ready appearance. Paired with a full-color touchscreen controller framed in anodized aluminum and equipped with four tactile physical buttons, this system offers immediate control for your presets, 4-corner manual control, axle adjustments, full air-out and other adjustable functions. With mobile app integration, ALP4 allows you to use and fine-tune your setup from anywhere, ensuring ultimate control.
Kit Includes:
- Threaded port (1/4” FNPT) manifold
- Main wiring harness
- USB-A to USB-C cable for controller-to-harness connection
- Manifold mounting hardware
- Electrical hardware
- (6) 1/4” MNPT x 1/4” OR 3/8" PTC fittings
- (1) SMC water-trap with manual drain and mounting strap
- (1) Air line cutter
- (60) 1/4” OR 3/8" DOT air line
Kit Features and Benefits:
- Pressure-based air management system with all-in-one manifold with ECU, solenoids, and pressure sensors built in for cleaner installs and fewer fail points
- Upgradable to a height-based air management system by incorporating our Height Upgrade Kit
- Anodized black billet aluminum manifold block with LED-lit top cover and rotatable logo plate
- Threaded ¼” MNPT manifold ports compatible with included PTC fittings or any ¼" male-threaded fittings
- 5-inch full-color touchscreen controller with anodized aluminum case, 4 physical buttons, and auto-dimming ambient light sensor
- Adjustable LED colors for manifold cover, controller backlight, and buttons (8-16 selectable options)
- Plug-and-play harness for easy install, only needing power, ground, and keyed ignition; drop-in upgrade for existing 3P/3H setups
- Free mobile app with improved connectivity and a user-friendly interface for full system control
- Pressure-based system with optional upgrade to height-based control via Pressure-to-Height Upgrade Kit
- Built-in diagnostics with clear, easy-to-understand system messages
- Compressor performance test and diagnostics to track and benchmark compressor health
- Adjustable pulse rate for fine-tuning system responsiveness
- Valet Mode with customizable lockout settings
- Improved ride adjustment algorithms with learning and road filtering
- Show Mode which allows full use of the system with the vehicle off for one ignition cycle
- Standby mode which allows wireless connectivity and use of the system with the vehicle off for an adjustable period of time, with the controller, LED lighting, and compressor disabled for minimum power draw
- Adjustable preset maintain sensitivity (high, medium, low)
- Slow Lift/Lower Zone for pulsed movement near minimum ride height to manage ground contact smoothly
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Great fit!
Size: Large, Color: Beige
Most comfy undies THANK YOU!
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Comfortable and cool. Does not ride up.
Color: 01-multicolour (4-pack), Size: Medium
Extremely comfortable. Stays cool. Ample coverage. Quality material. They do not creep up. I ordered a medium which I generally take a size small. I have reordered and will reorder again to add more colors to my collection.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Great Value for Cool Thigh Protection
Color: 02-multicolour (4-pack), Size: XX-Large
For the price, I'm not sure there are better women's boxer shortlettes anywhere. I've tried more expensive brands, and for quality and cooling, these are right up there. I have other bamboo viscose undies that still get gross when I get sweaty in the summer, but these, with the large mesh panel, really help wick away a lot of that moisture, keeping you feeling dryer and cooler. I find that the leg openings are comfortable and don't roll up! and the waist band doesn't dig, nor does it roll down. These do not provide any compression, and I wasn't looking for any. I just wanted some cooling, thigh protecting women's boxers that wouldn't break the bank. These are them! Bonus- I've washed them and put them in the dryer (following their instructions), and they haven't shrunk; they look about the same and are nice and soft.
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Reviewed in the United States on July 28, 2025
★★★★★ 4
Great for the entire family but expensive
So far so good. The brand of boxers we had been buying changed their style and construction so we needed to find an alternative. These have held up well so far to multiple weeks of frequent washing and wearing from the entire family. We did size up from the usual 6/M we normally buy and ordered large to prevent the legs from rolling up which worked out great. Our daughter likes the length and how soft the fabric is for wearing under skirts and gym shorts and liners stay put without moving or leaking as another reviewer mentioned. Our son says they are comfortable and fit well being just supportive enough without being constrictive. We all agree that there seems to be not enough fabric in the back as they tend to be much tighter across the backside than the front and that also causes the waist band to ride lower in the back than the front. These have better seam placement than some brands we tried with no seam across the lady bits and no seam down the middle of the back side so they are more much comfortable but the cost is also much higher and that is why we're only giving it 4 stars. These will stay in the rotation until we find something cheaper that both us and the kids like.
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Reviewed in the United States on January 24, 2026
★★★★★ 5
Pregnant lady review! Soft, comfortable, cool.
Color: 03-multicolour (4-pack), Size: Large
So soft, comfortable and cool. I'm pregnant and I've gained weight in my legs. I love wearing dresses but my thighs were rubbing together too much. These are perfect to wear under dresses. I also wear them under my bibs at work and it keeps me from getting overheated but I don't have to worry about whether or not my underwear show since they just look like shorts. I wish these came in maternity. I just keep them below my belly. I'll be buying more for sure.
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Reviewed in the United States on April 8, 2026