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
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle RedThe AEM 21 836WR Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno tested to fit specific Subaru WRX STI models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is located in the original air
The AEM 21-836WR Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Subaru WRX STI models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is located in the original air box space and is protected by a heat shield which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from mandrel-bent aluminum featuring a durable textured red powder coated finish. This air intake system was developed to accommodate the engine's factory emissions control devices including the mass air flow sensor. The tapered cylinder shaped AEM Dryflow air filter is made from an oil-free, synthetic filter media that can be used for up to 100,000 miles before cleaning is needed (depending on driving conditions). The air intake system is easy to install with commonly available tools and it is backed by AEM's Lifetime Limited Warranty. Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards while others are 50 state legal. View the 21-836WR vehicle applications to determine the legal status for each vehicle.Technical Drawing
Installation Instructions
Installation Instructions
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018 | Subaru | WRX STI | Base |
| 2018 | Subaru | WRX STI | Limited |
| 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
4.5 ★★★★★
Based on 309 reviews
Sort
Product Reviews
★★★★★ 5
My every day watch. I love it.
Color: Silver/Black/Gold
Is it the nicest watch? Nope.
Does the clasp come undone as time goes on? Yep.
Do I still wear it every day? Absolutely.
This is my daily driver watch. It will win no awards in quality or style, but it looks great, goes with everything, has minimal error as days go by, and is easy to read. Cheap and great. A rare combo these days.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
★★★★★ 5
Great value for dress watch or casual use
Color: Silver/Black/Gold, Color: Silver/Black/Gold
Amazing piece for the price. Had many compliments from coworkers and family about the watch, a real conversation starter. second hand is on point and even with big wrist it suits me well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
★★★★★ 5
Great quartz Datejust alternative!
Color: Silver/Black/Gold, Color: Silver/Black/Gold
I was looking for a cheap quartz Datejust alternative and many online reviews suggested this watch. I originally wanted the black and silver version but as prime only had the smoky gray and Gilt indices I went with that, in case it didn't meet expectations and needed an easy return. I needn't have worried. This watch is great!
The smoky gray sunburst dial is beautiful (as good as my Aqua Terra), and matches well with the Gilt applied indices and hands and white printing (words and minute ring on border); the Gilt details give it the vintage heritage look that's popular now. It's also very easy to read (as opposed to my silver Omega quartz) and date only (which oddly makes it seem pricier). Lume is fair and present on the hands alone, but better than my Tag Heuer link. The folded bracelet is a little stiff but easy to size (google how to size a folded bracelet and this was about the easiest I've done), good quality and very comfortable. it also has 4 microadjust positions on the clasp. The movenent also hacks.
On the wrist, it looks very similar to the datejust but without the heft and probably better sized at 39mm (with 20mm band). The smaller sizing and price also make it a nice alternative to the Tissot gentleman quartz. And the Casio brand makes it probably one of the cooler datejust homages, as its the brand that both hipsters and billionaires wear (per style and value).
Downsides are the plated case (not full stainless), folded bracelet (though to be fair Rolex used folded bracelets originally as well) and snap on back, but at $30 can you really complain? And I needn't worry if I accidentally bash it against a doorsill. I'm wearing it already!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 8, 2020
★★★★★ 4
Great quality/ customer support
Color: Silver/Black/Gold
I had to order a replacement because the first box was damaged and had been previously opened. Thankfully it’s was super easy and fast to do, i got the new one and is amazing, its chic and classic. It’s the perfect size for small writs!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 5
Serves the purpose
Color: Silver/Black/Gold
Looks very nice for an inexpensive watch. And keeps time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026