BMW 440i (F32 LCI) (17-20) Sports Cat / De-Cat Downpipe Performance Exhaust

Unlock the full potential of your BMW 4 Series 440i F32 LCI 2017 to 2020 with a turbo down pipe upgrade that transforms response, tone and flow. This Cobra Sport unit replaces the restrictive factory catalytic converter with free-flowing 88.9 mm 3.5 inch pipework from the turbocharger outlet to the centre section, giving your B58-powered coupe a deeper soundtrack and a sharper feel every time you press the throttle.

Why enthusiasts choose this upgrade

• 3.5 inch 88.9 mm mandrel-bent pipework for reduced back pressure and better gas velocity
• Direct fit from turbo to centre exhaust section, replaces the OE catalyst
• Choice of high flow sports catalyst or catless race version for track use
• All relevant fittings and gaskets are supplied for installation

We have fitted this to customer cars and the feedback has been outstanding. Expect crisper spool, a more purposeful exhaust note and a more engaging drive. If you are planning future tuning, this is a popular foundation for remapped B58 builds on the 440i coupe.

Options

• Sports catalyst High-flow catted design to increase performance while keeping a refined tone. Replaces a factory emissions device and is not EC homologated. This may not meet current emission laws for road use in your territory.
• De-cat Straight-through race pipe for maximum flow and the most aggressive sound. Sold for motorsport and off-road use only worldwide.

Fitment

Compatible with: BMW 440i F32 LCI 2017, 2018, 2019, 2020 B58 3.0 turbo. Fits from turbo to the centre exhaust, replacing the standard catalytic converter.

Professional installation

Book expert fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and scheduling.

What you get

• Cobra Sport turbo outlet pipe assembly in 88.9 mm 3.5 inch diameter
• All relevant fittings and gaskets

Important notes

The de-cat version is sold for motorsport and off-road use only worldwide.
The sports catalyst version replaces a factory emissions device and is not EC homologated. This may not meet current emission laws for road use in your territory.

Perfect for buyers searching for

BMW 4 Series 440i F32 LCI exhaust upgrade, B58 turbo down pipe, high flow cat for BMW 440i, catless pipe for track, race down pipe, performance exhaust for 440i coupe, turbo outlet pipe, 3.5 inch down pipe, UK BMW tuning parts, BMW 440i decat, catted downpipe, BMW 440i F32 facelift exhaust.

Media

Exhaust Talk Episode Two - Sports Catalyst vs De-Cat Performance Exhausts