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Description
aFe 08-23 Subaru Outback H4 / H6 Sprint Booster V3 Power ConverterAutomobiles in the 21st century have replaced the more conventional throttle cable technology for an ECM (Electronic Control Module) that translates pedal travel into electronic signals in order to provide power to the wheels. The ETC system (Electronic Throttle Control), also known as drive by wire, has the unfortunate downside of delayed throttle response and subdued acceleration, creating problems in certain circumstances such as up hill starts,
Automobiles in the 21st century have replaced the more conventional throttle cable technology for an ECM (Electronic Control Module) that translates pedal travel into electronic signals in order to provide power to the wheels. The ETC system (Electronic Throttle Control), also known as drive-by-wire, has the unfortunate downside of delayed throttle response and subdued acceleration, creating problems in certain circumstances such as up-hill starts, quick gear changes, overtaking, etc. The Sprint Booster aims to overcome this throttle response delay for ETC-equipped vehicles, providing crisp on-tap acceleration at the driver's disposal. For vehicles with electronic control (ETC) systems, or drive by wire, this device plugs into the OE connector located behind the accelerator pedal. It's a simple installation, requiring no cutting of any wires or interference of the automobile's electronics. It does not affect other systems such as electronic injection, ABS, etc. The three main acceleration modes can be switched by pressing the main button. When the LED is off, the Sprint Booster is deactivated, and the car has factory settings. In Sport Mode, the LED is green, and throttle response is improved by up to 30%. With the red colored LED, the Sprint Booster is in Race Mode, and it improves response by up to 60%. Each acceleration mode comes with nine programs. Select 1-9 in SPORT mode and 1-9 in RACE mode, with '1' being the least aggressive program and '9' the most aggressive. The acceleration programs can be changed using the two arrow buttons on the top of the device. By selecting the desired acceleration program in each mode, the driver can fine-tune each mode per their driving style (e.g. select SPORT 9 & RACE 5).This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2024 | Subaru | Ascent | Base |
| 2025 | Subaru | Ascent | Bronze Edition |
| 2019-2025 | Subaru | Ascent | Limited |
| 2022-2025 | Subaru | Ascent | Onyx Edition |
| 2023-2024 | Subaru | Ascent | Onyx Edition Limited |
| 2025 | Subaru | Ascent | Onyx Edition Touring |
| 2019-2025 | Subaru | Ascent | Premium |
| 2019-2025 | Subaru | Ascent | Touring |
| 2016-2023 | Subaru | Crosstrek | Base |
| 2016-2023 | Subaru | Crosstrek | Limited |
| 2016-2023 | Subaru | Crosstrek | Premium |
| 2021-2023 | Subaru | Crosstrek | Sport |
| 2010-2012 | Subaru | Legacy | 2.5GT |
| 2008-2019 | Subaru | Legacy | 2.5i |
| 2008-2019 | Subaru | Legacy | 2.5i Limited |
| 2010-2019 | Subaru | Legacy | 2.5i Premium |
| 2008-2009 | Subaru | Legacy | 2.5i Special Edition |
| 2014,2017-2019 | Subaru | Legacy | 2.5i Sport |
| 2009 | Subaru | Legacy | 3.0 R |
| 2008-2009 | Subaru | Legacy | 3.0 R Limited |
| 2010-2013 | Subaru | Legacy | 3.6R |
| 2010-2019 | Subaru | Legacy | 3.6R Limited |
| 2010-2012 | Subaru | Legacy | 3.6R Premium |
| 2020-2025 | Subaru | Legacy | Base |
| 2008-2009 | Subaru | Legacy | GT Limited |
| 2008-2009 | Subaru | Legacy | GT spec.B |
| 2020-2025 | Subaru | Legacy | Limited |
| 2020-2022 | Subaru | Legacy | Limited XT |
| 2020-2025 | Subaru | Legacy | Premium |
| 2020-2025 | Subaru | Legacy | Sport |
| 2020-2025 | Subaru | Legacy | Touring XT |
| 2008-2019 | Subaru | Outback | 2.5i |
| 2008 | Subaru | Outback | 2.5i L.L. Bean Edition |
| 2008-2019 | Subaru | Outback | 2.5i Limited |
| 2008 | Subaru | Outback | 2.5i Limited L.L. Bean Edition |
| 2010-2019 | Subaru | Outback | 2.5i Premium |
| 2009 | Subaru | Outback | 2.5i Special Edition |
| 2017-2019 | Subaru | Outback | 2.5i Touring |
| 2009 | Subaru | Outback | 3.0 R Limited |
| 2010-2013 | Subaru | Outback | 3.6R |
| 2010-2019 | Subaru | Outback | 3.6R Limited |
| 2010-2012 | Subaru | Outback | 3.6R Premium |
| 2017-2019 | Subaru | Outback | 3.6R Touring |
| 2008,2020-2025 | Subaru | Outback | Base |
| 2020-2025 | Subaru | Outback | Limited |
| 2020-2025 | Subaru | Outback | Limited XT |
| 2023-2025 | Subaru | Outback | Onyx Edition |
| 2020-2025 | Subaru | Outback | Onyx Edition XT |
| 2020-2025 | Subaru | Outback | Premium |
| 2008 | Subaru | Outback | R L.L. Bean Edition |
| 2020-2025 | Subaru | Outback | Touring |
| 2020-2025 | Subaru | Outback | Touring XT |
| 2022-2025 | Subaru | Outback | Wilderness |
| 2008-2009 | Subaru | Outback | XT Limited |
| 2015 | Subaru | XV Crosstrek | Base |
| 2013-2015 | Subaru | XV Crosstrek | Limited |
| 2013-2015 | Subaru | XV Crosstrek | Premium |
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
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.5 ★★★★★
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Product Reviews
★★★★★ 5
Extremely comfortable
Color: 02-multicolour (4-pack), Size: X-Large
These are by far the softest and most comfortable underwear I have ever owned. The leg portion absolutely does roll up as so many others have mentioned, however, I did not find that to be uncomfortable at all just annoying that they don’t stay in place.
I bought these specific underwear to see if it would help alleviate HS symptoms at all. They have definitely helped with wicking moisture away from the skin. More time will tell if it’s truly helpful for HS. For now, I will recommend these. They are thin, breathable, butter soft, wick moisture comfortable and I would buy again…maybe in a different style next time. I have washed them several times and they seem to be holding up rather well so that is also of supreme importance given the cost of the item.
Again, I would recommend this item and plan on purchasing more in a different style very soon.
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Reviewed in the United States on September 13, 2025
★★★★★ 3
Eaten by my Thighs
Color: 04-multicolour (4-pack), Size: X-Large
I wanted to love them. Sadly they have let me down.
Pros: natural breathable fabric , super soft and comfortable, cotton panty gussets for feminine health and panty liners will stick!! Yay:). And the colors! They are great!
But here’s the Con. And it’s the con of all cons.
THEY RIDE UP!! Eaten by my thighs. I’m 5’6” and in the general area of 175. I fluctuate depending on how many times I visit the bakery! :) I don’t have a thigh gap but it is not a super tight thigh squeeze. I seldom have thigh climb but these do. I tried two different sizes to see if that made a difference. Nope.
I was miserable at a recent theme park in these. I was wearing long heavy dresses and it was quite awkward to yank these legs down non stop.
They feel amazing and they have all the requirements
1. Soft
2. Comfortable and stretches with you
3. Breathable with nice thin fabric. Not bulky
4. Natural fibers
5. Great colors
If you are a person that is not blessed with Thunder Thighs, please order these. They are great! I wear them at home and to locations that I will not be doing a lot of walking at. I have washed them so many times and they look like new still.
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Reviewed in the United States on October 4, 2025
★★★★★ 5
Best Boxer Briefs for Women!
Color: 09-multicolour (4-pack), Size: Large
I rarely give 5⭐️’s but these deserve it! Hands down, the most comfortable material, stitching, waistband, moisture wicking and overall comfort. They sit right beneath my bellybutton, they wash and dry well and they’re sturdy. I have tried 3 styles and these are the best.
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Reviewed in the United States on February 7, 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