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Upgrade Your X3 or X4 M40i With a MAD Intake Kit!
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Restore fuel mileage and performance
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Lifetime Replacement
Protect your engine, improve performance
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!
Lifetime Replacement
Commonly referred to as "replacement air filter".
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Lifetime Replacement
Replace your restrictive air box with these dual high flow cone filters for the highest possible air flow!
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Lifetime Replacement
Replace at 20,000 miles intervals under normal driving.
Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
06-04-2026
Lifetime Replacement
Replacement air filter for stock airbox. Made by the OEM supplier Hengst.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!
Lifetime Replacement
Drop-in high performance air filter with a million mile warranty!
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For vehicles with production date from 09/1985
Lifetime Replacement
Improve your performance with this aggressive sounding MST Cold Air Intake and Turbo Inlet Pipe.
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Lifetime Replacement
Lifetime direct replacement high-flow air filter
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Lifetime Replacement
Get better MPGs with this filter!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Lifetime Replacement
Get the most performance out of your engine!
Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
06-04-2026
Choose Your Filter Color
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Replacement filter
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*Two required per vehicle, this listing is a single filter*
This product was last offered at the strikethrough price on
01-20-2026
Lifetime Replacement
Protect your engine, restore performance
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
06-04-2026
Lifetime Replacement
By placing our massive 3.5" high-flow ducting right behind the front grilles, your turbos get a direct gulp of cold air. The results? Max induction, a sharp look peeking through the grille, and a sound profile that will put a smile on your face every time
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