


IE 3.0T B8/B8.5 S4 Cold Air Intake
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
IE 3.0T B8/B8.5 S4 Cold Air IntakeUPGRADE POWER & SOUND Force feed your Audi S4 or S5 3. 0T supercharger direct high flow rammed air with and IE Cold Air Intake! The perfect addition to your engine bay, instantly adds horsepower, torque, snappy throttle response, and an aggressive supercharger sound. Typical peak gains from our CAI are roughly 15 25+ Horsepower and Torque on a tuned car. LEADING FEATURES Gain of 15 20 horsepower and torque Optional carbon fiber lid for an upgraded
Quick Dispatch:
Your IE 3.0T B8/B8.5 S4 Cold Air Intake orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your IE 3.0T B8/B8.5 S4 Cold Air Intake ships.
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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.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.0 ★★★★★
Based on 137 reviews
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Product Reviews
★★★★★ 5
Exelente
Size: For 85-300 HP
Exelente
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Reviewed in the United States on March 21, 2026
★★★★★ 5
Good as new
Size: Package Dimensions 6.02 x 4.02 x 2.05 inches
Fitment was great and works as it should. Good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2025
★★★★★ 3
Incorrect motor listed. Far smaller impeller than what's in the 6 horse johnson.
Size: For 5.5HP 6HP 7.5HP
It seems to be of good quality. However it does not fit a 6 horse johnson as it states. Therefore it will not pump water or function for my purposes. It was a waste of money.
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Reviewed in the United States on October 15, 2025
★★★★★ 5
Good product
Worked for what I needed. Fit great and easy to install.
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Old Merc Inline 6s - 1500, 1400, 1250, 1150
This is the second time I purchased from them. The kits are good quality, and impeller is durable. Pictures is the initial one I purchased from them two seasons ago. It had hundreds of hours on it, plus me accidentally cooking it for 3 mins without water hooked up to the engine - which is why I purchased it again. Given 2 seasons of use and my recent screw up it held up well.
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Reviewed in the United States on August 11, 2024