


IE Polymer Air Intake System For Audi B9/B9.5 S4 & S5 3.0T
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
IE Polymer Air Intake System For Audi B9/B9.5 S4 & S5 3.0TDetails FEATURES Rotomold polymer for superior heat resistance Up to 19HP & 21ft lbs over stock (with software) Flow 37% more than the factory airbox Flow 61% more than stock with IE turbo inlet Increased turbo & engine sounds Maximized turbo & engine efficiency Huge 5" air filter for excellent laminar flow Integrated velocity stack for smooth airflow High pressure & low pressure air zones Designed for stock turbo and hybrids (with IE turbo inlet)
Quick Dispatch:
Your IE Polymer Air Intake System For Audi B9/B9.5 S4 & S5 3.0T orders ship within 1-2 business days.
Delivery Options:
- 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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4.7 ★★★★★
Based on 1291 reviews
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Product Reviews
★★★★★ 3
Nice Coat Not So Great Packaging
Size: X-Small, Color: A-grey
Nice coat but packaging needs to be improved. It arrived not properly folded and as a result it was completely wrinkled. Took some work to iron so it looked as advertised. Packaging for such things has to be reviewed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2025
★★★★★ 5
Love the coat.
Size: Large, Color: A-navy
Coat looks and fits great. I ordered a black and was sent dark blue, other wise it looks awesome.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 31, 2023
★★★★★ 5
Love
Size: X-Small, Color: A-grey
I got this coat for my boyfriend and I love it. It fits him perfectly and is very true to size. It is very comfortable and keeps him warm. He loves it. I would definitely recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2023
★★★★★ 5
Nice jacket
Size: Medium, Color: Grey 01
Nice jacket . Material exactly as described.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
★★★★★ 5
Value for money
Size: Large, Color: A-red
Exquisite; stylish.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2025
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