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

Engineered Forced Induction & Exhaust Upgrades for the BMW 6 Series Platform

Spanning the sleek E63/E64 era and the modern F06 Gran Coupé, F12 Convertible, and F13 Coupé, the BMW 6 Series provides high-speed grand touring capability backed by serious powertrain engineering. From the sequential twin-turbo M57 635d that reshaped performance diesel expectations to the twin-scroll N55 (640i), the twin-turbo straight-six N57 (640d), and the twin-turbo V8 N63/S63 (650i / M6), this platform holds immense tuning potential. However, due to the tight frontal packaging, heavy underbody bracing, and dense factory emissions packages, extracting reliable Stage 2, Stage 3, and hybrid turbo figures demands eliminating factory exhaust choke points and thermal saturation.

Our performance catalogue targets the three core mechanical bottlenecks that limit torque delivery, turbocharger longevity, and high-RPM airflow:

• Billet Hybrid Turbochargers: Engineered with 5-to-7-axis CNC-machined extended-tip billet compressor wheels, oversized high-flow turbine shafts, and heavy-duty 360-degree motorsport thrust bearings. Whether upgrading the sequential twin-turbo assembly on an M57/N57 635d/640d (small high-pressure + large low-pressure) to hold brutal torque beyond 850 Nm, or upgrading the single twin-scroll unit on an N55 640i to sustain boost past 6,000 RPM (yielding 480–520+ bhp), these direct bolt-on units mount to original manifolds and connect to OEM oil and coolant feeds.

• Direct-Fit Stepped Bar-and-Plate Intercoolers: The long engine bay of the 6 Series houses substantial heat. Repeated wide-open throttle pulls quickly saturate the undersized OEM tube-and-fin core, causing Intake Air Temperatures (IATs) to climb rapidly. When this occurs, the DME/DDE pulls ignition timing or fuel volume to prevent pre-ignition. Our stepped-core front-mount intercoolers (FMIC) offer up to an 85% increase in frontal volume with dense bar-and-plate construction and CFD-optimised cast-aluminium end tanks, maintaining dense charge air during sustained acceleration.

• Mandrel-Bent T304 Stainless Downpipes (Decat & Sports-Cat): Relieve massive backpressure directly off the turbine exhaust housings. Fabricated from 3-inch, 3.5-inch, and 4-inch aircraft-grade T304 stainless steel with precision TIG welds, our downpipes slash turbine backpressure, lower Exhaust Gas Temperatures (EGTs) by up to 150°C, accelerate turbo spool by 300–400 RPM, and give these executive engines a refined, authoritative exhaust tone.

Select Your BMW 6 Series Generation

• BMW 6 Series E63 / E64 (2003–2010): Forced induction hardware engineered primarily for the sequential twin-turbo M57 diesel (635d), including 3.5-inch decat downpipes, large stepped intercoolers, and dual-stage hybrid turbos.

• BMW 6 Series F06 / F12 / F13 (2011–2018): Stage 2 and Stage 3 bolt-on packages for the single-turbo N55 640i, twin-turbo N57 640d, and hot-vee twin-turbo V8 platforms across Coupé, Convertible, and Gran Coupé bodies.

Chassis Fitment & Drivetrain Specifications

• Coupé (E63, F13) & Gran Coupé (F06): Share uniform front-end subframe spacing and exhaust transmission-tunnel clearances. All downpipes, intercoolers, and hybrid turbos install directly without modification to structural sheet metal.

• Convertible Structural Bracing (E64, F12): Due to the lack of a fixed roof, convertible models feature extensive underbody cross-bracing to prevent chassis flex. Our downpipes and mid-pipe transitions are engineered with specific radius clearances to prevent any chassis rattle or contact against these support braces under load.

• sDrive (RWD) vs. xDrive: Petrol N55 downpipes clear both drivetrain options. For N57 diesel models, ensure you select the xDrive-specific downpipe variant to clear the front axle and transfer case assembly.

Frequently Asked Questions

What hardware is mandatory for a Stage 2 ECU tune on a BMW 640d or 640i?

A high-flow sports-cat or decat/DPF-delete downpipe is essential across all models to relieve backpressure against the turbine wheel. For N55 petrol and N57 diesel variants, an upgraded stepped front-mount intercooler (FMIC) is strongly recommended to stabilize intake air temperatures and prevent ECU thermal derating.

Do F10 5 Series performance parts fit the F06/F12/F13 6 Series?

Mechanically, the engine bay layout, front subframe, and turbo configurations are virtually identical between the F10 5 Series and the F06/F12/F13 6 Series for equivalent engine codes (e.g., F10 535i and F12 640i N55). Downpipes and intercoolers are largely interchangeable between matching engine variants, though convertible (F12) models require verification of underbody brace clearance on cat-back sections.

Will an upgraded downpipe trigger an engine management light (EML)?

Yes. Catless downpipes on petrol models trigger secondary O2 sensor efficiency codes (P0420/P0430). On diesel platforms (M57/N57), removing the factory DPF triggers differential pressure sensor faults. Both require a Stage 2 ECU tune (DME/DDE calibration) to disable catalyst/DPF monitoring routines.