Dinan Cold Air Intake – BMW X3 M40i / X4 M40i (G01/G02)

OVERVIEW

Dinan's gloss twill carbon fiber cold air intake for the LCI X3 M40i and X4 M40i replaces the restrictive factory airbox with a larger-volume housing and higher-flow filtration, built to work with the factory turbo inlet or Dinan's optional carbon turbo inlet pipe.

The larger airbox and filter combine for a measured 7% flow increase over stock (589 CFM vs. 458 CFM), with a 66% larger airbox volume (250 in³ vs. 150 in³ stock) and 44% more filter surface area (82 in² vs. 57 in² stock).

SPECS

• Gloss twill carbon fiber airbox construction
• Flow: 589 CFM vs. 458 CFM stock (7% increase)
• Airbox volume: 250 in³ vs. 150 in³ stock (66% larger)
• Filter area: 82 in² vs. 57 in² stock (44% larger)
• Fits LCI models only (2020+); not compatible with pre-LCI 2018–2019 cars
• Not CARB-compliant — not legal for sale or use in California

PARTS INCLUDED

• Dinan carbon fiber intake airbox assembly
• High-flow filter
• Required clamps, couplers and mounting hardware

TECH RESOURCES

Additional Parts Required

• Dinan B58 G-Chassis Turbo Inlet Fit Kit (D763-0101) — contact us to order. Required only if also installing the Dinan Carbon Turbo Inlet Pipe (D760-0062). Dinan states the turbo inlet will not mate to this intake (or the factory intake) on LCI X3/X4 M40i without the fit kit.
• This intake alone needs nothing else; no fit kit is required if you are not also installing the Dinan turbo inlet pipe.

Installation

• Dinan installation instructions – D760-0075 (X3/X4 M40i intake)

PART NUMBER

• D760-0075 — Dinan Cold Air Intake, BMW X3 M40i / X4 M40i (B58, LCI)

VEHICLE APPLICATIONS