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K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake

Marsoni M251S
Sale price$159.00
Pay 4 payments of $39.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance IntakeGain a guaranteed increase in horsepower and torque with a K&N cold air intake system featuring a mandrel bent aluminum intake tube. Each system is paired with a washable, reusable High Flow Air Filter featuring oiled cotton filter media. The oversized, conical filter design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield or air box helps protect intake air from the high
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Your K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake orders ship within 1-2 business days.

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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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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
4.4 ★★★★★
Based on 529 reviews
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Product Reviews
C
Verified Purchase
christina castillo
Dallas, US
★★★★★ 5
GREAT PRODUCT!
Size: 16 Line Spools+4 Caps
GREAT PRODUCT!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
A
Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 4
Good
Size: 20 Line Spools+4 Caps
Great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
K
Verified Purchase
K. Ranch
Natrona Heights, US
★★★★★ 5
Works like original equipment
Size: 16 Line Spools+4 Caps
Seems to handle the same work load as the manufacturer part. Good quality fit and design. No problems installing the string on the trimmer head. Definitely worth the purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 18, 2025
D
Verified Purchase
Doug
Natrona Heights, US
★★★★★ 5
Great replacement item.
Size: 16 Line Spools+4 Caps
Fit perfectly but price fluctuates catch them at a low price and order multiples or reload the cassettes with bulk string yourself...easy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
K
Verified Purchase
Kevin Marshall
Fort Morgan, US
★★★★★ 5
It was delivered next day
Size: 8 Line Spools+2 Caps
If it's like the previous line I purchased, it's good. Don't leave it in a hot garage, because the line will sometimes stick together when you get around to using it! NOTE: Again, I received this product YESTERDAY, and Amazon is sending me a survey today!! What AMAZON brain surgeon thinks that this is a good idea????
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026

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