Injen SP Series Short Ram Air Intake Polished - 2020-2025 BMW M240i/M340i/M440i (SP1140P)

Fits 2020-2025 BMW M240i, M340i, and M440i models including xDrive and Gran Coupe.

The Injen SP Series short ram air intake system provides significant performance overhead for the BMW B58 engine. This system is engineered around a massive 4.00-inch O.D. mandrel-bent T6-6061 aluminum intake tube, which replaces restrictive factory plumbing with a smooth, high-velocity air path. Dyno testing on a stock tune resulted in gains of up to 19 horsepower and 18 lb-ft of torque, providing improved throttle response and an aggressive engine note under load.

This kit includes an application-specific heat shield designed to isolate the air filter from radiant engine bay heat, ensuring cooler intake charges. It features the SuperNano-Web dry air filter, which offers high-flow filtration without the need for oiling. Hand-TIG welded and finished in high-luster polished aluminum, this system combines a premium under-hood aesthetic with precise OE-style fitment.

• Dyno-proven gains of up to 19 hp and 18 lb-ft torque
• 4.00-inch O.D. mandrel-bent 6061-T6 aluminum tubing
• Includes custom heat shield and mounting hardware
• SuperNano-Web dry air filter (X-1026-BB) is fully serviceable
• Maintains safe air/fuel ratios on factory engine calibration
• Hand-TIG welded construction for maximum durability
• Manufacturer Part Number: SP1140P
• Note: Not CARB exempt; not for sale or use in California