The Dinan Cold Air Intake for the B58-powered G2x M240i, M340i and M440i reworks the entire lower box, not just the lid, to house a custom free-flowing filter 40% larger than stock at 115 square inches. A patterned secondary inlet on the side opposite the engine adds volume without raising intake temperatures, and the carbon fiber system outflows the stock intake by 58% while adding up to 9 WHP and 8 lb-ft at 6500 RPM. Unlike the earlier version it is compatible with every G2x Mx40i whether or not the car has factory strut bracing.
| Type | Carbon fiber cold air intake |
| Material | Carbon fiber airbox (upper and lower) |
| Filter Area | 115 in² (40% over stock) |
| Power Gain | +9 WHP and +8 lb-ft @ 6500 RPM |
| Part Number | D760-0058 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2026 | BMW | M240i | Base |
| 2022-2026 | BMW | M240i xDrive | Base |
| 2020-2026 | BMW | M340i | Base |
| 2020-2026 | BMW | M340i xDrive | Base |
| 2021-2026 | BMW | M440i | Base |
| 2022-2026 | BMW | M440i Gran Coupe | Base |
| 2021-2026 | BMW | M440i xDrive | Base |
| 2022-2026 | BMW | M440i xDrive Gran Coupe | Base |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
