Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
JEN SPEED SOLUTIONS Gurney Flap Spoiler2015+ Subaru WRX STI Gurney Flap by Jen Speed Solutions The Jen Speed Solutions Gurney Flap adds aggressive styling to your low profile trunk spoiler. Without looking too intrusive, the Gurney flap modification adds a small amount of height to your existing spoiler for a clean, clearly modified look. The Jen Speed Solutions Gurney Flap is constructed from 10g 6061 T6 plate aluminum to eliminate corrosion and rusting. Precision laser cut, slotted holes
2015+ Subaru WRX/STI Gurney Flap by Jen Speed Solutions
The Jen Speed Solutions Gurney Flap adds aggressive styling to your low-profile trunk spoiler. Without looking too intrusive, the Gurney flap modification adds a small amount of height to your existing spoiler for a clean, clearly modified look.
The Jen Speed Solutions Gurney Flap is constructed from 10g 6061-T6 plate aluminum to eliminate corrosion and rusting. Precision laser cut, slotted holes allow for alignment adjustments during installation for a perfect fit. The Jen Speed Solutions Gurney Flap has a small enough profile that rear visibility is virtually unchanged. After installation, the third brake light assembly still sits higher than the gurney flap. Installation of the Jen Speed Solutions Gurney Flap is easy with our step-by-step instructions and addition of our included threadsert hand tool. The Jen Speed Solutions Gurney Flap does require drilling into the existing low-profile trunk spoiler and the final look is definitely worth it.
After sending the Jen Speed Solutions Gurney Flap in for professional flow analysis, it was determined that it decreases overall lift of the car while only slightly increasing drag. This means the aerodynamic efficiency of the system is increased.
Features
10g 6061-T6 Plate Aluminum Construction
Laser Cut Slotted Holes for a Perfect Fit
Powder Coated Semi-Gloss Black Finish
Benefits
Aggressive Aesthetics
Increase in Downforce of 35lbs
Increase in Downforce of 35lbs
Increase in Downforce of 35 lbs at 75 mph, 62 lbs at 100 mph, and nearly 100 lbs at 125 mph.
Please Note:
Only fits with low-profile trunk spoiler
Applications
2015+ 2019 Subaru WRX
2015+ Subaru WRX STI
What's in the box?
1 - Jen Speed Solutions Gurney Flap
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
4.3 ★★★★★
Based on 592 reviews
Sort
Product Reviews
★★★★★ 5
Well made, light fabric. Waist doesn't roll.
These bamboo underwear really do keep you cool.
They fit true to size, and wear easily. the wide elastic waist band doesn't roll on me.
They are comfortable to wear, washed and dried easily.
The material has some stretch to it, but not a lot.
Well made, no stray strings. Perfect fit for me.
Just what I was looking for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 5
Good quality, smooth feel
I got these briefs so recently that have washed just one pair so far. First off, these are very comfortable, the material is soft & bordering silky, good quality sewing. Wash well and minimal if any shrinkage. They do come a bit wrinkled from the dryer but hey, these are underwear and will go on smoothly. If it were a t-shirt, I would look sloppy. I feel the sizing is accurate. No rolling and these don't announce themselves under clothing. Planning on getting more of these boxers and replacing my old panties.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
★★★★★ 4
A little snug on the thighs
Size: Medium, Color: Multicoloured G (5-pack)
Super comfy, soft and thin. For reference, I'm 5'6", 135, athletic build. I bought medium. I almost returned them because I thought they were a bit too snug on my thighs, and my thighs are not large at all. I was concerned about panty lines under snug clothing. But, because they're thin, I figured they would probably stretch, so I kept them. So far, I've only worn them under a night shirt, but they're super comfortable and they dont ride up at all. Very nice, but if your thighs are a little thick, you probably won't like them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 29, 2025
★★★★★ 5
Functional + Sexy
Size: Small, Color: Multicoloured E-(5-pack), Size: Small, Color: Multicoloured E-(5-pack)
Not only do these feel good, my husband can’t keep his hands off me. They fit so good and are soft. I change into these to sleep but also just use them as shorts to wear around the house. They’re comfortable and don’t slide around. I got a size small and I’m 100lbs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
★★★★★ 5
Finally!
Size: X-Large, Color: All Black D (5-pack)
Finally, comfortable underwear that don’t end up giving me a wedgie. I have a round booty and most cuts of underwear end up shifting as I walk and sit. The hem of the underwear comes right under my cheeks and the lightweight material ensures there’s no panty line and no shifting to where I don’t want them! I’m definitely purchasing more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
recommand products
Channellock GS-1X Set in a Mini Display
1031.80
Channellock 2pc Oil Filter/ PVC Plier Set
70.21
NaturVet ProDen PlaqueOff System Dental Care Bones for Dogs - Dog Breath Freshener & Plaque Remover - Dog Teeth Cleaning for a Healthy Mouth - Turkey Cranberry Flavor
24.99
Hikari Bio-Pure Freeze Dried Brine Shrimp for Pets, 0.42-Ounce
11.99
Channellock 4pc Square-Recess Screwdriver Set
49.34