★★★★★ 4
Air filter
Easy to install, correct fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 27, 2023
SPECIAL ORDER: 911 1-5/8 Inch OD Exhaust Heat Exchanger Header Set (EXH FPOR 0401)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
SPECIAL ORDER: 911 1-5/8 Inch OD Exhaust Heat Exchanger Header Set (EXH FPOR 0401)MADE TO ORDER ONLY PRODUCTION TIME 3 5 WEEKS Early 911 1. 63" Exhaust Heat Exchanger Set Early 911 Style Heat Exchanger Designed For Dual Inlet Muffler System For 1969 1989 Porsche 911 With 2. 5L 2. 7L 2. 8L 3. 0L High Performance Engines Featuring Larger Primary: 1 5 8 in. O. D. (41mm) And 38 mm I. D. 24. 5" Primary Tube Length Mandrel Bent Primary Tubes Tig Welded 304 Stainless Steel Construction Billy Boat Exhaust Patrick Motorsports USA Requires
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4.6 ★★★★★
Based on 486 reviews
Sort
Product Reviews
★★★★★ 5
Worth it!
Perfect fit for my 23 MDX, easy to install and great value for money. Dealership quoted me a ridiculous amount to replace the air filter. I would recommend everyone to DIY. Bought it together with the cabin air filter. Will definitely keep an eye on longevity. These are washable so probably wont need to buy for at least a couple years.
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Reviewed in the United States on November 10, 2025
★★★★★ 5
Fit
Size: 8.8" x 9.3" x 1.1"
Product looks and works well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
Easy installation
Size: 8.8" x 9.3" x 1.1"
It fit my 2011 Honda accord coupe 👍🏼
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Works great
Size: 8.8" x 9.3" x 1.1"
Good filter
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Reviewed in the United States on August 15, 2025
