Contact us today if you have any questions about unlocking the full potential of your G11 / G12 7 Series BMW with high performance parts and upgrade hybrid turbos from Falcon Turbos.

Engineered Forced Induction & Exhaust Upgrades for BMW G11 & G12 (740i, 730i, 740e, 730d, 740d, 750d)

The sixth-generation BMW 7 Series combines lightweight Carbon Core architecture with Munich’s most advanced modular engine platforms. From the high-headroom B58 3.0L straight-six petrol (740i / 740Li) and the hybrid-assisted B48 2.0L (730i / 740e / 745e) to the brutal torque of the multi-stage B57 diesel family (730d, 740d twin-turbo, 750d quad-turbo), the G11/G12 platform possesses massive untapped potential. However, unlocking reliable Stage 2, Stage 3, and bespoke hybrid turbo performance requires overcoming restrictive factory emissions equipment, hot-side turbine backpressure, and thermal saturation in the water-to-air cooling circuit.

Our performance catalogue targets these specific bottlenecks:

• Billet Hybrid Turbochargers: Eliminate top-end boost taper while maintaining instant low-RPM transient response. Engineered with 5-to-7-axis CNC-machined lightweight extended-tip billet compressor wheels, enlarged exhaust turbines, and heavy-duty 360-degree motorsport thrust bearings. Whether upgrading the single-turbo B58 Gen 1 / B58TU on the 740i to hold peak boost past 6,500 RPM (yielding 550 to 650+ bhp), squeezing maximum volumetric efficiency from a B48, or pushing the sequential B57 diesel straight-six to over 900 Nm of torque, these units bolt directly to original manifolds and connect to factory oil/coolant lines.

• Direct-Fit Uprated Charge-Cooler Radiators (Low-Temperature Heat Exchangers): Because the G11/G12 platform uses an indirect liquid charge-air cooling system rather than a traditional front-mount intercooler, intake air temperatures are regulated by a low-temperature coolant circuit. Under sustained highway acceleration, the factory single-row radiator saturates, causing manifold water temperatures to spike and the DME/DDE to retard ignition timing. Our high-capacity dual-pass aluminium front heat exchangers feature enlarged bar-and-plate cores, providing up to a 60% increase in fluid volume to keep Intake Air Temperatures (IATs) low and boost pressure consistent.

• Mandrel-Bent T304 Stainless Steel Downpipes (Decat & Sports-Cat): Relieve massive hot-side backpressure right off the turbine exits. Fabricated from 3-inch, 3.5-inch, and stepped 4.5-to-3.5-inch aircraft-grade T304 stainless steel with precision TIG welds, our downpipes slash turbine backpressure, drop Exhaust Gas Temperatures (EGTs) by up to 150°C, and accelerate turbo spool-up by 300–400 RPM while maintaining executive cabin refinement.

Platform & Engine Compatibility Breakdown

• BMW B58 3.0L Petrol (740i / 740Li / 740i xDrive): Supports Pre-LCI (B58B30M0, 2015–2019) and LCI (B58TU1, 2019–2022). Our 4.5-inch stepped downpipes and bolt-on Stage 3 hybrid turbos unlock substantial headroom over factory boost levels.

• BMW B48 2.0L Petrol & Plug-in Hybrid (730i, 740e, 745e): Relieve backpressure and sharpen throttle response with precision sports-cat downpipes and uprated front cooling radiators designed to clear high-voltage hybrid wiring harnesses and auxiliary coolant loops.

• BMW B57 3.0L Diesel (730d, 740d xDrive, 750d xDrive): Bolt-on decat/DPF-delete downpipes and high-pressure hybrid turbos safely lower EGTs under load while expanding mid-range torque on single, twin, and quad-turbo diesel setups.

• Standard (G11) vs. Long-Wheelbase (G12) & xDrive: The additional 140 mm on G12 models is added to the rear passenger cabin. Engine bays, downpipe routes, heat exchanger locations, and turbo mountings are 100% identical between G11 and G12 platforms. Petrol downpipes clear both rear-wheel-drive (sDrive) and xDrive systems; diesel downpipes feature dedicated bends to navigate front axle assemblies.

Frequently Asked Questions

Are G11/G12 downpipes compatible with factory OPF/GPF emissions systems?

Yes. Our downpipes feature precision CNC-machined ports matching factory Euro 6d particulate filter pressure and exhaust temperature sensor locations. Installing a high-flow sports-cat or catless downpipe on an OPF-equipped model (mid-2018+) requires a Stage 2 ECU remap or OPF emulator harness to suppress dashboard warning lights.

Why doesn’t the G11/G12 7 Series use a traditional front-mount intercooler?

The G11/G12 utilises an indirect water-to-air charge-cooling system where the intercooler core is integrated directly into the intake manifold. To improve cooling on these engines, you upgrade the front auxiliary low-temperature radiator (heat exchanger) with a larger-capacity dual-pass core rather than fitting a traditional air-to-air intercooler.

What hardware is required for a Stage 2 ECU tune on a G11/G12 740i or 730d?

A high-flow downpipe (200-cell sports-cat or decat) is the core hardware requirement to reduce turbine backpressure. For the B58 petrol engine, an uprated front-mount charge-cooler radiator is strongly advised to prevent IAT heat soak during repeated acceleration runs.