★★★★★ 5
Very good filter
Size: CA12290-Premium
Very good filter
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Reviewed in the United States on December 3, 2025
aFe Twisted Steel Header SS-409 HDR Jeep Wrangler YJ 91-99 I6-4.0L
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
aFe Twisted Steel Header SS-409 HDR Jeep Wrangler YJ 91-99 I6-4.0LSKU: 48 46201 UPC: 802959480021 aFe Power Twisted Steel 409 Stainless Steel Header Jeep Wrangler YJ TJ Cherokee Comanche Grand Cherokee 91 99 4. 0L I6 This aFe Power Twisted Steel header upgrades exhaust performance on Jeep 4. 0L inline six engines in Wrangler YJ TJ Cherokee Comanche and Grand Cherokee models from 1991 to 1999. Pulse control technology with optimized tube lengths and mitered collectors improves flow velocity and power delivery across
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Your aFe Twisted Steel Header SS-409 HDR Jeep Wrangler YJ 91-99 I6-4.0L 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.
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4.0 ★★★★★
Based on 71 reviews
Sort
Product Reviews
★★★★★ 3
Not 99.9 %
Size: CA12290-Premium
Only 98% efficient. Says 99.9 in the ad. There is a huge difference between those two efficiencies.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
★★★★★ 5
Accord
Size: CA12290-Premium, Size: CA12290-Premium
Fit was perfect on 2018 accord, delivery fast and packaging intact.
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Reviewed in the United States on August 18, 2025
★★★★★ 5
Prefect fit
Size: CA12290-Premium, Size: CA12290-Premium
Excellent product! OEM Replacement. If you are buying for horse power gains. You will not really notice any difference
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Reviewed in the United States on February 18, 2025
★★★★★ 5
K and N is the best
Size: CA12290-Premium
In my opinion, you can’t buy a better air filter. Been buying them for all my cars since the 1990s.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2024
