Koshi Marine Carbon Fiber Engine Air Scoops for Mercury V8 Outboard
SKU: 52985051346

Koshi Marine Carbon Fiber Engine Air Scoops for Mercury V8 Outboard

Sale price$809.55 Regular price$899.50
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Koshi Marine Carbon Fiber Engine Air Scoops for Mercury V8 OutboardSkillful knowledge has it that removing the cowling on your 300R 450R will increase your engine's power as more airflow becomes available. The Koshi carbon scoops act as an "air ram" that allows forced air into the cowling, increasing the static air pressure, which ultimately makes its way into the supercharger on the 450R, therefore providing more engine power. These scoops also help reduce what is commonly referred to as "station wagon effect",

 

Skillful knowledge has it that removing the cowling on your 300R/450R will increase your engine's power as more airflow becomes available. The Koshi carbon scoops act as an "air ram" that allows forced air into the cowling, increasing the static air pressure, which ultimately makes its way into the supercharger on the 450R, therefore providing more engine power. These scoops also help reduce what is commonly referred to as "station wagon effect", which is the pulling of exhaust fumes into the rear of the intake, which makes its way into the intake, reducing horsepower. This is primarily a concern on boats going over 100+ mph.

The Koshi air scoops have been designed and manufactured in-house at Koshi's state-of-the-art carbon fiber facility, utilizing blemish-free Prepeg carbon fiber.

Outboard Fitment:

  • - Mercury Verado V8 4.6L 250HP
  • - Mercury Verado V8 4.6L 300 or 300R
  • - Mercury V8 4.6L 450R
  • - Mercury V8 4.6L 500R

 

 

Finish Options:
- Koshi Carbon Scoop in High Gloss
- Prepreg Carbon Fiber material (Using Delta-Preg, the exact supplier of Ferrari and Lamborghini).
- Cured with Autoclave technology (140°C – 6 bar)
- Individual Quality Control for a guaranteed and precise fit
- Stylish and carefully designed.

The kit comes with left and right cowling pieces and each unit is for one engine.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 52985051346

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DP
Boise, US
★★★★★ 1
Stopped charging one month later.
Color: 2-Speed Silver, Size: Rechargeable
It was great even though it grinds very coarse. It can be adjusted but the finer is still too coarse but that was not a big deal. It has now stopped taking charge at the base and there’s no other way to charge it… since the return window closed, to the trash it goes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
M
Verified Purchase
MJG
Houston, US
★★★★★ 5
Works Very Well
Color: 2-Speed Silver, Size: Rechargeable
At first salt spilled from bottom and top was loose. I then realized there was an adjustment on bottom that took care of that issue and if I put top on until it clicked, it locked. They work very nicely and I would recommend them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 21, 2025
C
Verified Purchase
crystal cintra
Belleville, US
★★★★★ 5
These are great and good quality
Color: 2-Speed Silver, Size: Rechargeable
These are great and good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
R
Verified Purchase
R&S Mick
Birmingham, US
★★★★★ 5
Convenient set with charging stand and light
Color: 2-Speed Silver, Size: Rechargeable
Recommend for anyone who cooks and wants fresh seasoning with less hassle. The built-in light on the bottom was a pleasant surprise and ends up being genuinely useful. It helps you see exactly where the seasoning is going and how much you’re dispensing, especially when you’re cooking in the evening or working over darker foods. That small detail makes the set feel more practical than a basic grinder.
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Reviewed in the United States on March 1, 2026
T
Verified Purchase
Timtoolman04
Natrona Heights, US
★★★★★ 5
No brainer
Color: 2-Speed Silver, Size: Rechargeable
These units work great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2026

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