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AEM 08-14 WRX/STi Cold Air Intake Sytem - Gunmetal Gray

Marsoni M251S
Sale price$132.50
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AEM 08-14 WRX/STi Cold Air Intake Sytem - Gunmetal GrayAEM AEM 21 478C Cold Air Intake System: 21 478C. AEM's mandrel bent aluminum cold air intake systems are guaranteed to provide an increase in horsepower and torque, and are protected by the AEM Lifetime Limited Warranty. Air Box Included: No Air Filter Color: Red Air Filter Material: Non woven Synthetic Air Filter Outlet Shape: Round Air Filter Washable: Yes California Restricted: Not legal for sale or use in California Clamp Color Finish: Natural
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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.
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4.5 ★★★★★
Based on 1384 reviews
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Verified Purchase
Fred C
West Palm Beach, US
★★★★★ 5
I use it on every fill up keeps the motor running smooth
Size: 16 Fl Oz (Pack of 1), Style: Individual
Best stuff on the market and fast delivery
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 6, 2025
A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 5
Does what it says
Size: 16 Fl Oz (Pack of 1), Style: Individual
Have a JD 280 and it was not running well at all. Surging, not running good overall, where as previously it was. I used this and after a few hours of running, it cleared up very well and runs like a "Deere" now. Product line is still, one of the best out there. Bought again for my chain saw and use it in my weed wacker too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 7, 2025
M
Verified Purchase
M. Chulick
San Leandro, US
★★★★★ 4
Delivered quickly
Size: 16 Fl Oz (Pack of 1), Style: Individual
Just trying to keep my small engines running with this awful California fuel
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
S
Verified Purchase
Shopper scott
Dallas, US
★★★★★ 5
Good buy
Fit great. I have a toro 7.25 Brigs & Stratton 21 icnh rececyler. Mower started up great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
R
Verified Purchase
Robert Edwards
Alexandria, US
★★★★★ 5
Good Product
Works great
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Reviewed in the United States on April 26, 2026

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