Regardless of application, a Dinan turbo inlet replaces the weak, and failure prone, plastic factory inlet with a more robust carbon fiber one. OEM + fittings are utilized to ensure proper fitment and guarantee installation as a direct replacement to the OEM inlet. Beyond material and fitment however are the improvements to the characteristics of the primary element in the system, the pipe itself. The stock turbo inlet has incorporated additional features (multiple in some cases) that introduce flow restrictions and turbulence while also reducing turbo noises. All of which are unwanted but easily rectified by removing the various resonators and enlarging (and optimizing) the path for a more uniform flow. The result is an inlet that delivers not only more air and allows the turbo to be more efficient (work less) but also provides the oft desired amplification to the turbo induction soundtrack.
Turbo inlet pipes serve two very distinct, and differing, purposes. On one hand the optimization of a turbo inlet pipe will encourage better turbo efficiency and responsiveness by allowing the turbo to ingest more air by way of an unobstructed and larger volume flow path. On the other, you have a more visceral benefit that some may argue is equally, or even more, important than that of efficiency/flow optimization --- increased sound. No matter which of the distinct purposes is favored, Dinan will deliver on both.
For best sound and flow charectaristics it is best to run the appropriate Dinan air intake element.
Increased turbo efficiency and reliability courtesy of maximum unimpeded and uniform airflow.
Dinan 25-27 BMW M340i/M440i (G20/G21/G22/G23/G26) Gen3 B58 Carbon Fiber Turbo Inlet Pipe
Eliminates the factory sound resonator for increased turbo vocalization.
Carbon fiber construction for increased durability and visual appeal.
Increase in overall intake volume and flow rate over OEM inlet.
Dinan Turbo Inlet Pipe - Gen 3 B58 M340i & M440i 2025+
Direct replacement of plastic OEM turbo inlet.
Quick and easy bolt-on installation.
Carbon Fiber - Gen 3 M340i M440i
G20 M340iM440i LCI2 TURBO INLET
Turbo Inlet Pipe
DIN AIK