Falcon Turbos B58 Performance Downpipe – Ultimate Upgrade for the F & G Chassis 40i BMW models
The Falcon Turbos performance BMW B58 downpipe is one of the most advanced and best-constructed downpipes on the market today, engineered specifically for high-performance tuned BMW B58 40i vehicles.
Designed and tested on Falcon Turbos’ own development vehicle, this BMW B58 downpipe delivers the ideal balance of performance, reliability, and noise control.
Maximum Performance with Smart Exhaust Design
This downpipe features:
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3.15” diameter (80mm) – maximises exhaust flow straight off the turbo
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3.15” outlet diameter (80mm) – optimised for the best balance of power and sound
This design gives you maximum power without unnecessary drone or harshness.
Built from Premium T304 Marine-Grade Stainless Steel
The Falcon Turbos downpipe is manufactured from T304 stainless steel, offering:
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Corrosion resistance
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High temperature durability
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Long-term reliability in harsh environments
It also includes a high-quality flex joint, allowing the exhaust system to move and flex with the engine without cracking or stressing other components.
The perfect addition when paired with our B58 hybrid turbo upgrade
Sensor Compatibility
The downpipe includes fittings for all factory sensors
Off-Road Use Only
⚠️ STRICTLY FOR OFF-ROAD USE ONLY
This downpipe is designed for competition, track, and off-road vehicles and is not intended for use on public roads.
SERIES / CHASSIS
F20 / F21 / F22 / F23 / F30 / F31 / F32 / F34 / F36 / G11 / G12 / G30 / G31 / G32
MODELS
140i, 140ix, 240i, 240ix, 340i, 340ix, 440i, 440ix, 540i, 540ix, 640i, 740i, 740Li, 740Lix
ENGINES
B58
REPLACES GENUINE BMW PART NUMBERS:
- 18328631625
- 18327643152
- 18328652180
- 18328684788
Contact us if you have any questions about unlocking the full potential of your BMW with performance parts and upgrade turbos from Falcon Turbos.
