★★★★★ 5
Good
Very nice very good
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Reviewed in the United States on February 10, 2026
Injen 11-15 Kia Optima / Hyundai Sonata 2.4L Polished Short Ram Air Intake
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Injen 11-15 Kia Optima / Hyundai Sonata 2.4L Polished Short Ram Air IntakeSKU: SP1333P UPC: 843115021832 Injen 11 15 Kia Optima Hyundai Sonata 2. 4L Polished Short Ram Air Intake This Injen SP1333P Short Ram Air Intake delivers more air to your 2011 2015 Kia Optima or Hyundai Sonata 2. 4L engine for increased horsepower and torque. Engineered with patented tuning it provides smooth airflow dyno proven gains up to 11 HP and 12 lb ft while maintaining safe air fuel ratios across the RPM range. The polished aluminum design
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- Standard: 3-7 business days
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- 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.
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4.8 ★★★★★
Based on 2198 reviews
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Product Reviews
★★★★★ 5
Excellent plugs, superb performance
Exactly as described at a decent price. I've found over my decades of doing my own tune ups, the one thing you can't skimp
on when tuning up your vehicle, plugs and its shows if you do. Out of the box, all 4 were gapped correctly. Ease of installation depends on your vehicle and ones mechanical ability with PATIENCE. 100% compatible with my vehicle, be sure to match you numbers. Overall 5 stars for performance and price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 5
💯% Authentic NGK Made in Japan.
Got these for my 2016 Subaru Crosstrek. You can't go wrong with NGK, these are 💯% AUTHENTIC, and made in Japan, unlike other NGK plugs that may be sold by other sellers which could be made in Thailand. The Subaru Crosstrek is running like a brand new vehicle after I put these puppies in it.
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Reviewed in the United States on December 23, 2025
★★★★★ 5
buy these!!
these are legit original NGK, superior plugs, will buy again
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Worked like a charm
Worked like a charm. The box and packaging were adequate from keeping the gaps of the plugs from being squished.
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Reviewed in the United States on May 13, 2026
