Scorpion BMW M240i/M340i/M440i G4x/G2x 5" Downpipe Exhaust System

De-Cat Downpipe / GPF Models (UK/EU)

£352.24

£352.24 £391.38

Scorpion BMW M240i/M340i/M440i G4x/G2x 5" Downpipe Exhaust System

£352.24

£352.24 £391.38

10% OFF

Catalyst Selection De-Cat Downpipe High Flow Sports Cat Downpipe

Car Selection GPF Models (UK/EU) Non-GPF Models (ROW)

Lifetime Warranty

Scorpion exhaust systems come with a lifetime warranty* for the original purchaser, giving you ultimate peace of mind

UK Manufactured

All Scorpion exhausts are manufactured in the UK from certified grade T304/316 stainless steel for a superior quality finish

- With popular products we will always aim to hold stock to ensure rapid delivery times across the UK.

- With less commonly ordered products we rely on drop shipping from our suppliers, this can occasionally result in delays in delivery times.

- Where a product is required urgently please contact us first before placing your order so we can check stock and delivery times to ensure no disappointment.

- Once an order is placed we aim to be in touch within 24 hours with either your delivery details or estimated time of delivery for your products.

- Need to return an item? No problem, get in touch and we can explain the next steps.

Please contact us ahead of time to confirm current/up-to-date delivery information for your desired system.

Seen it cheaper elsewhere? Get in touch with where and how much and we'll not only do our best to match it, where possible we aim to beat it!

Got a question about this product? Get in touch via our online chat or email and our team of experts will get back to you as soon as we can with an answer.

This product is compatible with the following models and year ranges:

BMW M240i G42 (2022-)
BMW M340i G20/G21 (2019-)
BMW M440i G22/G23/G26 (2020-)

Designed and manufactured by Scorpion’s experienced engineering team, this 125mm (5″) downpipe exhaust system is tailored specifically for the BMW M240i/M340i/M440i G Series. By replacing the standard exhaust downpipe, it optimises exhaust gas flow from your turbocharged engine and helps enhance performance for a more involving driving experience, all while maintaining a clean, OE-style fit and finish.

Sports Cat or De-Cat?

Scorpion offers two downpipe configurations to match your driving preferences:

Sports Cat: Balances power gains with reduced emissions and improved road compliance. Provides a deeper tone than the standard restrictive downpipe without droning.
De-Cat: Maximises exhaust flow and volume with a straight through section. This is intended for off-road use only.

How Does It Improve Your BMW?

A downpipe upgrade improves your car by reducing exhaust back pressure at the turbo outlet, allowing the turbocharger to spool faster and operate more efficiently. This results in noticeable gains in horsepower and torque, sharper throttle response, and improved mid range pull, especially when combined with ECU tuning.

In addition, a high flow sports cat or de-cat downpipe enhances exhaust sound, delivering a deeper, more aggressive tone under load while reducing heat retention in the turbo system. On tuned setups, it also helps maintain more stable boost and exhaust gas temperatures, supporting safer and more consistent performance under hard driving.

Built to withstand year round UK conditions, all Scorpion systems are designed for long term durability and feature a lifetime warranty*.

Technical Specification

PIPE DIAMETER	125mm / 5″
MATERIAL	T304 Stainless Steel
FITS TO	OEM or Scorpion GPF-Back
MODEL	BMW M240i/M340i/M440i G Series
FITMENT YEARS	2019-
FITTING TIME	1 Hour
NOTES	Where not supplied use original fittings.

Scorpion BMW M240i/M340i/M440i G4x/G2x 5" Downpipe Exhaust System

Lifetime Warranty

UK Manufactured

Sports Cat or De-Cat?

How Does It Improve Your BMW?

Technical Specification

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