do88 BMW 135I / 335I N55 (E8X/E9X) Turbo Inlet Hose

More air to your engine, less backpressure, and better airflow. The efficiency of a turbocharged engine is under direct influence of intake air temperature (IAT) and backpressure in the system. A crucial aspect, yet often overlooked, is having sufficient airflow before the compressor to avoid surge, less vacuum and colder air enables the turbo to produce a greater mass of air, which ultimately means more air to the intake, summing up to noticeable power gains.

do88 started development by 3D-scanning the entire designated area on the car, working in a sensible manner within a CAD environment using SolidWorks. The entire air filter system was optimised for airflow, with radiuses and angles reworked many times to achieve the best result. The finished product was verified with both Computational Flow Dynamics (CFD) and do88's own Superflow SF-1020 flow bench. The result is a genuine 59% higher airflow at 0.175 bar/2.54psi pressure drop with the 59mm version (1049 CFM versus 660 CFM stock). The kit comes with 3D freeform-designed inlet hoses made from the finest silicone in a black finish, a CNC-machined turbo inlet adapter, and top-quality hose clamps.

Please select your inlet diameter at checkout: 47mm (for OE turbo), 54mm (for hybrid turbo with a 54mm compressor housing inlet), or 59mm (for hybrid turbo with a 59mm compressor housing inlet). Confirm your exact turbo spec before ordering.

Why Choose This Turbo Inlet Hose

• Up to 59% higher airflow than OEM (59mm version, independently tested)
• Designed from a genuine 3D-scan of the car's engine bay, refined through CAD and CFD
• Verified on do88's own Superflow SF-1020 flow bench
• 3D freeform silicone hoses in a clean black finish
• CNC-machined turbo inlet adapter for a precise fit
• Three diameter options to match OE or hybrid turbo setups

Compatibility

• BMW E82/E88 135i/135is (2010-2013, N55)
• BMW E90/E91/E92/E93 335i/335iX (2010-2013, N55)
• BMW E84 X1 35i (2012-2015, N55)

Confirm your turbo spec at checkout: 47mm (OE), 54mm (hybrid), or 59mm (hybrid).