Engineered Performance Hardware for the BMW 1 Series F40 Platform

The third-generation BMW 1 Series F40 manufactured between 2019-2024 shifted the platform to a transverse engine architecture (FAAR/UKL2). While the modular B48 2.0L turbocharged petrol and B47 2.0L turbo-diesel powerplants offer formidable factory output, high ambient temperatures, tight engine bay packaging, and restrictive emissions equipment (OPF/GPF) present immediate bottlenecks when tuning beyond factory parameters.

Pushing an F40 M135i xDrive, 128ti, or 120d past 350 to 450+ bhp requires targeted hardware upgrades designed to lower turbine backpressure and eliminate intake air thermal saturation:

• Billet Hybrid Turbochargers (B48 & B47): Engineered using lightweight, 5-to-7-axis CNC-machined billet compressor wheels paired with enlarged cut-back exhaust turbine wheels and 360-degree motorsport thrust bearings. These units fit directly into factory transverse engine bays, retaining OEM oil and water feed lines while flowing the sustained air mass required to eliminate high-RPM boost taper on Stage 3 builds.

• Stepped Bar-and-Plate Intercoolers: The F40’s transverse layout places cooling components in close proximity to the exhaust hot side. Our high-efficiency front-mount intercoolers (FMIC) offer up to an 80% larger frontal surface area and increased core volume over OEM units. Optimised cast aluminum end tanks reduce internal pressure drop, drastically lowering intake air temperatures (IATs) to stop the ECU from retarding ignition timing during sequential pulls.

• Stainless Steel Downpipes (OPF-Compatible Sports-Cat & Catless): The factory downpipe and Gasoline Particulate Filter (GPF/OPF) introduce severe thermal buildup directly off the turbocharger housing. Fabricated from mandrel-bent, TIG-welded T304 stainless steel, our 3-inch and 3.5-inch downpipes feature precision laser-cut flanges and factory-location sensor bosses. They lower exhaust gas temperatures (EGTs), relieve turbine backpressure for significantly faster spool-up, and deliver an aggressive exhaust note.

F40 Engine Compatibility Guide

• BMW B48 2.0L Petrol (Transverse): Fitment for the flagship F40 M135i xDrive (306 PS, B48A20T1), the front-wheel-drive 128ti (265 PS, B48A20M1), and the 120i. Upgraded downpipes and stepped intercoolers provide the core breathing capacity required for reliable Stage 2 calibrations.

• BMW B47 2.0L Diesel (Transverse): Dedicated direct-fit performance hardware for the 118d and 120d xDrive models. Upgraded hybrid turbochargers and high-flow downpipes dramatically expand mid-range torque while controlling exhaust temperatures under sustained towing or track conditions.

Frequently Asked Questions

Are F40 downpipes compatible with factory OPF/GPF sensors?

Yes. Our F40 downpipes are engineered with CNC-machined pressure and temperature ports matching OEM Euro 6d sensor locations. Running a high-flow sports-cat or decat downpipe requires a Stage 2 ECU remap or an OPF emulator module to prevent instrument cluster warning lights.

Do F40 intercoolers require cutting the front bumper or crash bar?

No. All intercoolers in this category are direct bolt-on replacements. They utilise the factory mounting pins and retain standard boost hose clip configurations without modifications to the front carrier or radiator shroud.

What is the difference between F20 and F40 performance parts?

F20/F21 platforms feature longitudinal rear-wheel-drive drivetrains, whereas the F40 is a transverse front-wheel/all-wheel-drive platform. None of the exhaust downpipes, turbocharger housings, or intercooler mountings are interchangeable between F20 and F40 generations.

Contact us if you have any questions about unlocking the full potential of your BMW 1 Series with our high-performance upgrade hybrid turbos and parts from Falcon Turbos.