Akrapovič Downpipe w Cat (SS) - G2x M340i/M440i, G29 Z4 M40i

A pioneer in its field, Akrapovic is widely recognised as a highly innovative materials technology company. The brand is synonymous with the highest level of design, performance enhancement and the creation of an unmistakable deeply resonant exhaust sound and style.
$4,119.00

Product Information

This downpipe is crafted from high-quality stainless steel, with the front part of the cast in Akrapovič’s in-house foundry. A sporty 300 cpsi catalytic converter is integrated into the downpipe, with the heat insulation made of stainless steel and a flexible tube incorporated into the middle section. Power gains with an Evolution Line (Titanium) fitted with the Akrapovič downpipe of 18.7 kW (25.4 hp) at 5,600 rpm and torque increases of 34.7 Nm at 2,400 rpm have been recorded when tested on the Akrapovič dyno against a BMW M440i with the standard stock exhaust. It delivers a pure racing sound, full of emotion and adrenalin-inducing enjoyment, and great feedback at high revs, all without unwanted drone.

This product is meant for racetrack use only, and remapping the ECU is mandatory in order to prevent potential “check engine light” warning signals.

Suitable for G20 M340i xDrive Sedan, G21 M340i xDrive Touring, G22 M440i xDrive Coupe, G23 M440i xDrive Convertible, G26 M440i xDrive Gran Coupe and G29 Z4 M40i Roadster models without OPF/PPF only.

power
+18.7 kW
at 5600 rpm

torque
+34.7 Nm
at 4300 rpm

THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.


TECHNICAL DATA


Max. Power | Stock | Akrapovic | Gain
kW | 280.4 / 5450 rpm | 297.0 / 5600 rpm | + 18.7 / 5600 rpm
HP (m) | 381.2 / 5450 rpm | 403.8 / 5600 rpm | + 25.4 / 5600 rpm
HP (i) | 376.0 / 5450 rpm | 398.3 / 5600 rpm | + 25.1 / 5600 rpm

Max. Torque | Stock | Akrapovic | Gain
Nm | 538.9 / 2700 rpm | 559.7 / 3700 rpm | + 34.7 / 4300 rpm
lb-ft | 397.5 / 2700 rpm | 412.8 / 3700 rpm | + 25.6 / 4300 rpm

Measured with: BMW M440I (G22, G23) 2021


DOCUMENTS


Models
  • 3 Series / G20 / G21 (2019+) / M340i / M340i xDrive
  • 4 Series / G22 / G23 / G26 (2020+) / M440i / M440i xDrive
  • Z Series / G29 Z4 (2018+) / Z4 M40i

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Extremely happy and love this place. Great service from Eric. Bought and installed akrapovic exhaust system from this place. Also purchased and installed the M performance bonnet. 100% coming back for more service from this place.

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After 3 other BMW workshops couldn't fix the problem with my M3. SouthernBM sorted it. Excellent to deal with, great communication and customer service.

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Took my e60 there, Jimmy was an absolute pleasure to deal with, very honest, explained everything in detail, and provided some great recommendations due to my individual circumstance. Can not recommend highly enough.

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I have used many mechanics over the years for the many different types of vehicles in our company fleet and southern BM is one of the very few workshops I can highly recommend. Andrew and his team are also really passionate about their work and it shows.

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