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Armytrix BMW G80 G81 M3 Competition valvetronic exhaust system

SKU BMG8M-QS38C
Price

£4,884.00

Unleash the full potential of your BMW G80 M3 Sedan or G81 M3 Touring with the Armytrix Valvetronic Exhaust System—engineered specifically for the S58B30 3.0L twin-turbo inline-six. Designed to deliver unrivaled performance and sound, this cat-back valvetronic system integrates seamlessly with the factory OE valve control, giving you precision-tuned exhaust behavior through your car’s original drive modes.

 

Crafted for both OPF and non-OPF models, Armytrix ensures fault-free operation, enhanced flow, and a rich, aggressive tone that transforms every drive into an experience.

 

Key Features:

  • Fitment:
    BMW G80 M3 Sedan / G81 M3 Touring (2020–Present)
    M3 Competition – S58B30 Twin-Turbocharged I6
    OPF & Non-OPF Compatible
    Supports Left-Hand Drive & Right-Hand Drive vehicles

  • Main Pipe Diameter:
    Dual 2.75” piping – optimized for flow and turbo response

  • Quad 4” Tips:
    Motorsport styling with a bold and defined exhaust note

  • OE Valvetronic Integration:
    Exhaust valves operate via your vehicle’s factory drive modes—no extra remotes or wiring needed

  • CEL Prevention System (Full System Only):
    Proprietary catalytic converter & OPF fault code clearing technology reduces the likelihood of Check Engine Lights

  • Direct Bolt-On Installation:
    No cutting, no welding—precision-fit construction for hassle-free mounting

  • Armynator Module Supplied with Full System (Catback + Downpipe):
    Ensures full compatibility and fault-code clearing for OPF models

 

Drive Mode Responsive Sound Control

  • Comfort Mode (Valves Closed):
    Tame, refined tone for city driving or long-distance cruising

  • Sport/Sport+ Mode (Valves Open):
    Unfiltered turbo spool, maximum exhaust flow, and an exhilarating growl

  • Dynamic Valve Behavior:
    Valve positions adjust based on throttle input and RPM for a truly adaptive sound profile

 

Fitment Overview:

  • Model: BMW M3 / M3 Competition

  • Platforms: G80 Sedan / G81 Touring

  • Years: 2020–Present

  • Engine: 3.0L S58B30 Twin-Turbocharged I6

  • Emission Type: OPF & Non-OPF Compatible

  • Drive Orientation: Left-Hand Drive & Right-Hand Drive

 

Important Notes:

  • VIN Verification Required: Confirm compatibility before ordering

  • OPF Models: Strongly recommended to purchase full EV system (Catback + Downpipe) for error-free performance

  • Armynator Supplied Only with Full System Purchase

  • Utilizes OEM Valve System – No Aftermarket Controller Needed

 

Engineered to Outperform. Built to Integrate.

The Armytrix Valvetronic Exhaust System for the G80/G81 M3 is more than a sound upgrade—it’s a complete transformation of your driving experience. With fully integrated factory valve control, optimized piping, and CEL prevention, this system brings together the best of OEM functionality and aftermarket innovation.

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All purchases on this website our subject to our Terms and Conditions. Please ensure you have read and understood these before making a purchase. If you have any questions, please feel free to contact us and we will endeavour to answer any questions you may have.

 

PLEASE BE AWARE: Sports cats can NOT legally be installed on a vehicle for use on a public road that was manufactured after 1st March 2001 unless type ECE 103R approved - this can be identified in either the product description and/or in the Technical Information section listed. If you have any doubt on this approval, please contact us immediately for confirmation. Fitting a De-Cat/Cat Bypass, DPF delete/bypass or GPF delete/bypass to a vehicle that is to be used on UK roads will cause the vehicle to fail the MOT emissions test, therefore rendering it unroadworthy and illegal to be used on the road. Therefore, any such products are strictly sold as off-road or motorsport use only and NOT for road use. The vehicle should be transported from place to place via a trailer, flatbed or other recovery means.

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