Injen SP1140WB SP Short Ram Intake Kit for 20-25 BMW M240i/M340i/M440i 3.0T B58

Vehicle Fitment

• 2020-2024 BMW M340i / M340i xDrive (3.0L Turbo L6-B58)
• 2021-2025 BMW M440i / M440i xDrive / M440i xDrive Gran Coupe (3.0L Turbo L6-B58)
• 2022-2025 BMW M240i / M240i xDrive (3.0L Turbo L6-B58)

Fitment Notes

• Short-ram style intake -- replaces factory intake tube and filter element.
• Applicable for B58 3.0L turbo inline-6 engine; hybrids included where listed.
• Not currently CARB-exempt for sale/use in California or other CARB states.
• Installation uses factory mount points; verify clearance under hood and reuse MAF sensor.

Features

• Massive 4.00" O.D. mandrel-bent aluminum intake tube for improved airflow.
• Includes Injen SuperNano-Web dry air filter - washable & reusable.
• Hand-TIG welded construction for strength and fitment precision.
• Dyno-proven gains: up to +19 hp and +18 lb-ft of torque.
• Aggressive induction sound for enhanced driving experience.
• Retains factory air-fuel ratios and MAF calibration.
• Finish: Wrinkle Black (WB) -- high-quality coating for durability and heat resistance.
• Backed by Injen's limited lifetime warranty (original purchaser only).

Specifications

• Part Number: SP1140WB
• Series: SP Short Ram Intake
• Tube Material: 6061-T6 aluminum
• Tube Diameter: 4.00" (101.6 mm) O.D.
• Filter Type: SuperNano-Web dry synthetic filter
• Power Gains: Up to +19 hp / +18 lb-ft
• Emissions Status: Not CARB-exempt (California & CARB states unsupported)
• Warranty: Limited lifetime (original purchaser, exclude wear & misuse)

Included Components

• 1x Mandrel-bent 4" intake tube (Wrinkle Black finish)
• 1x Washable SuperNano-Web dry air filter element
• Silicone couplers, stainless T-bolt clamps, mounting bracket & hardware
• Detailed installation instructions

Product Description

The Injen SP1140WB SP Short Ram Intake is designed specifically for BMW models equipped with the B58 3.0L turbo inline-6 engine -- namely the M340i (2020-24), M440i series (2021-25) and M240i (2022-25). Featuring a massive 4.00" mandrel-bent aluminum intake tube and Injen's high-flow SuperNano-Web dry filter, this kit is engineered to significantly improve airflow, throttle response and engine sound while maintaining safe factory calibration.

Installation is straightforward and uses factory mounting points, with no major modifications required. While designed for performance gains, this version is **not CARB-exempt**, meaning it cannot be legally sold for on-road use in California or other CARB-regulated states. With its premium materials, performance tuning and lifetime warranty, the SP1140WB is an excellent upgrade for enthusiasts seeking more from their BMW's induction system.