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Description
K&N 05-09 Miata Performance Intake KitK&N 57i Series induction kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical kits can take a variety of different forms based on vehicle characteristics and available space under the hood. Each kit is designed to provide power throughout the RPM range. The extra surface area of these open air air filters provides even more airflow at lower
K&N 57i Series induction kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical kits can take a variety of different forms based on vehicle characteristics and available space under the hood. Each kit is designed to provide power throughout the RPM range. The extra surface area of these open-air air filters provides even more airflow at lower restriction than a K&N O/E replacement filter which is limited to the size of the factory air box. The larger air filter also captures and holds more dirt increasing its service life before a cleaning is required (up to 100,000 miles). The filter is either directly attached to the engine carburetor or throttle body or indirectly through a tube assembly running from the filter to the engine. All adapters are made from high quality materials such as steel, aluminum, silicon or reinforced nylon to ensure long life. 57i Series Intakes are not legal for use in California and other US States adopting California emission standards.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
4.8 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Red Berry Drink
Set name: Sour Patch Kids Redberry
I drink one of these red cans when I get to the shop in the mornin. The taste reminnd me of the candy my kids liked when they were small. It has a sour kick at first but a sweet taste comes next in my mouth. I feel awake after I finish the can. My focus stays sharp while I work on the mashines for a few hours. I do not feel jitters in my hands or my chest like I do with some coffee. The liquid has no color which is fine with me because it does not stain my teath. I keep the pack in the small fridge in the garage to keep them cold. It is a good choice for days when I have a lot of heavy labor to do. My brother tried one and he thought the flavor was tart but I think it is right. I do not feel a crash when the afternoon comes. It is a way to get energy for my shift. I like that the cans are tall and hold much to last a while. My wife says I look alert when I use them before our walk.
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Reviewed in the United States on February 19, 2026
★★★★★ 5
I’ll buy it again.
Set name: Warheads Sour Green Apple
Ghost is very good. Especially comparing it to other energy drinks that literally tingle your whole body if you drink it too quickly. When I’m looking for energy drinks I really want more focus and mental energy over simple caffeine high and energy. This does give me both. In a good way. It has been very effective in what it says it does. Definitely value for the money over buying it at the gas stations one by one. Buying it in bulk definitely cuts the cost down. Energy levels peak very well without a crash at the end. The ingredients seems to be very good because my body doesn’t feel heavy afterwards.
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Reviewed in the United States on April 18, 2026
★★★★★ 5
One of the best flavors ever created by ghost..
Set name: Sour Patch Kids Blue Raspberry
This energy drink tastes great one of my favorites, easy to drink and gives me energy I need..
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Reviewed in the United States on May 27, 2026
★★★★★ 4
Daily Drinker Warning: Great Energy, but Watch Your Teeth!
Set name: Orange Cream
No sugar which is great and this energy drink has become a staple but it is also very acidic so watch out if you have very thin teeth like me. I often find it increasing my sensitivity by a lot so a sensitivity toothpaste daily is essential for me since I drink these daily.
The feeling or energy from these is great, I have been drinking similar ones like G fuel for years and this gives me significantly more energy. A quick tip though is many dollar trees have Gfuel available so if you need sugar free energy drinks like me, they provide cheaper deals - currently dollar tree has G fuel for 1.25$ a can which is quite cost effective compared to Ghost.
Drinkability is mixed with Ghost, they are strong drinks. I often find G fuel being very refreshing and enjoyable while Ghost is very concentrated.
Comparison - Gfuel vs. Ghost ingredients and focus
Ghost:
Focus - Cognitive function, energy metabolism, and premium/transparent sourcing.
Caffeine - Natural from coffee beans
Nootropics - Alpha-GPC, NeuroFactor™ Coffee Fruit Extract.
Performance - Carnipure® L-Carnitine L-Tartrate, Taurine.
What makes it unique - AstraGin® (absorption enhancer), transparent proprietary blends.
Sweeteners - Sucralose, Acesulfame Potassium.
Gfuel:
Focus - support for focus and antioxidants.
Caffeine - synthetic
Nootropics - L-tyrosine and L-theanine
Performance - Taurine, L-citrulline malate
What makes it unique - Extensive Antioxidant Complex, high dose of Vitamins C, E, and B-vitamins.
Sweeteners - Sucralose, Acesulfame Potassium.
The bottom line here: G Fuel for maximum boost and vitamins; Ghost for premium, clean, and focused energy. Ghost is mostly proprietary blends of vitamins which is something to keep in mind since we do not know what is in them while G fuel is more transparent for the most part. I recommend trying both and seeing what works best for you.
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Reviewed in the United States on November 27, 2025
★★★★★ 5
Best Blue Raspberry energy drink out there!!
Set name: Blue Raspberry
I've tried multiple different brands of energy drinks that have blue raspberry as a flavor. My absolute favorite was the C4 Jolly Rancher Blue Raspberry energy drink..... UNTIL I tried this one. Beats it for sure. It has such a sweet, smooth and refreshing taste and gives a solid boost to power me through my day. The price is a little high but in all honesty it's worth the money! No crash or jitters after one of these and this is coming from someone who drinks lots of caffeine every day. TL;DR absolutely worth a try!!
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Reviewed in the United States on March 22, 2026