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Description
Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake - PolishedInjen Technology has done it once again with this new short ram air intake for the 2018 2021 Subaru WRX STI Equipped with the H4 2. 5L Turbo Engine. The Injen Technology SP1208 performance air intake system is the result of countless hours invested in research and development to provide a proven intake system designed to add power and performance to your STI. The Injen Technology SP1208 intake system is a direct replacement for that restrictive
Injen Technology has done it once again with this new short ram air intake for the 2018-2021 Subaru WRX STI Equipped with the H4-2.5L Turbo Engine. The Injen Technology SP1208 performance air intake system is the result of countless hours invested in research and development to provide a proven intake system designed to add power and performance to your STI. The Injen Technology SP1208 intake system is a direct replacement for that restrictive factory airbox and provides a engineered solution that allows that turbo to breathe deeply and produce it's full power potential with a simple drop-in install. To top it all off, no tune is required to get the power numbers noted!
- Note: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.
- Injen's MR Technology provides massive power gains while maintaining A/F ratios
- Includes custom heat shield specifically designed for this application
- Smooth intake piping eliminates restrictions and improves airflow
- Dyno Proven gains of up to 26 hp and 24 lb-ft. of torque
- No additional tuning required and no check engine lights
- Huge 3.250in mandrel-bent 6061-T6 aluminum intake tubing
- Fully serviceable Injen SuperNano-Web dry air filter
- Features Injen's patented MegaRam (MR) Technology
- Replacement air filter part number X-1059-BB
- Aggressive engine tone under full throttle
- Injen Technology Limited Lifetime Warranty
- Optional Hydroshield part number 1040BLK
- Available in multiple finishes
- Made in Pomona California, USA
- Short Ram Air Intake Design
- SP1208WB (Wrinkle Black)
- SP1208WR (Wrinkle Red)
- SP1208P (Polished)
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018-2021 | Subaru | WRX STI | Base |
| 2018-2021 | Subaru | WRX STI | Limited |
| 2019 | Subaru | WRX STI | S209 |
| 2018 | Subaru | WRX STI | Type RA |
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
4.1 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Great value!
Actually fits the hub better than the OEM cap.
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Reviewed in the United States on September 2, 2024
★★★★★ 5
Good buy and good replacement for stock
I can’t keep these on my UTV, so it’s good to find a reasonably priced alternative.
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Reviewed in the United States on August 17, 2024
★★★★★ 5
Definitely keeps your hands warm !!
Color: Black
These fit nicely on a H.D. Road King. If you bike has heated grips you can drive in 30 deg F weather with only a thin pair of leather gloves.
Update: They kept our hands toasty with the heaters on Level 2 and just wearing a thin pair of leather gloves (for grip) while riding in temps down in the low 30's, high 20's. I would definitely recommend these... the photo in the ad is pretty indicative of how they fit on handlebars. They're really designed for ATV's that have no turn signal lamps on the handlebars. Without modification, they do cover the handlebar mounted turn signals on a Sportster, but not on a Roadking. The draw string that seals the mittens around the handlebar could have a more positive grip to stay closed... we wound up double tying it around bar and that works great. The thing we like most aside from how warm they are (the lining feels great)... is that the cuffs are fairly rigid and don't collapse when you take you hands out (like the photo) which makes it super easy to pull you hands out and put 'em back in again. That's really important at a stop light, but even more important when flying down the road at highway speeds... you just can't afford to be fooling around trying to thread your hands and a coat sleeve back into mittens that are limp and flop down closed when you take you hands out...
I hope this help... be safe !!
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Reviewed in the United States on January 4, 2020
★★★★★ 5
Great
Color: Black
Great choice for outdoor activities.. warm.. fits well.. love the look and design… waterproof
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Reviewed in the United States on December 27, 2025
★★★★★ 4
If your hands are cold or wet after knowing these handlebar covers exist, well, that’s on you.
Color: Black
These atv gloves, mitts, handlebar covers, whatever you want to call them are a fantastic value. I was honestly surprised at the quality of construction. They have a soft comfortable cotton lining that seems to really hold heat from your hands. The cordura outside is super strong and the seams are very well done. There is a zip along the inside bend to allow for expansion over bigger controls to to allow for use with heavier gloves. (Just leave it unzipped) The draw string to tighten and secure the end to the handlebar is easily to operate and keeps everything snug and in place. It takes about 5 seconds to put each side on or take off. The draw string on the covers is about 5 times longer than necessary and I ended up cutting a foot or so off.
The down side of these is how snug a fit they have to the contour of the handlebars and controls. The material is pretty stiff, so you have to be careful. I was getting back on my Polaris 570 after stopping and I typically just leave my fourwheeler in high, so when I leaned forward on my handlebars the covers were stiff enough to push my throttle. Thank goodness nothing was in front of me, or was around to witness my panic. Ha. If I turn to sharply I have to be mindful of the material pressing against my hand and thus the throttle. It does Unzip at the elbow of the covers, but the seams are so stiff there is still resistance. I wish there was a softer material at the hand and bend, however the rigidity really makes it easy to slide your hands/arms (5’8” with alligator arms and they just about come to my elbows) in and out easily, even with a heavy coat.
They are indeed 100 waterproof, as unfortunately tested on 2 occasions. They are 112% windproof and I can comfortably ride all day at 35-40 degrees with no gloves(I live in west Alabama so sub 40 degrees is cold for me.) They have been an absolute game changer for the early morning drive in at the hunting club. They are a little stiff for sharp turns on wooded trails, but I expect they will soften with use.
Be mindful of the throttle and KNOW YOUR CONTROLS as they will be covered, but do yourself a favor and get these. If your hands are cold driving your fourwheeler after knowing these exist, well, it’s your own fault.
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Reviewed in the United States on January 18, 2021
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