Dinan 20-24 BMW M340i/M440i (G20/G22/G23/G26) Free Flow Axleback Exhaust System - Black Tips

The use of quad tips also presented some additional challenges and fostered some innovation to the already visually impressive system constructed entirely of TIG welded and brushed T304 stainless steel. Confined to dual tips, the factory system utilizes only one exhaust valve and functions by eliminating the passenger side tip when the valve is closed, siphoning all gases through the muffler and out the driver's side tip for quieter operation. With the introduction of more pipes/tips, this methodology was not practical, or desired. In true Dinan M exhaust fashion, our talented engineering team decided that integrating a second valve to the system would garner the most favorable results in both symmetry and overall sound. The result is a system that incorporates larger 76mm tubing (vs 70mm stock) and allows freer flow through the entirety of the system but specifically to both outer pipes when the enlarged valves are open. The resulting flow and sound mimics an awe-inspiring straight pipe solution with a deeper and meatier tone, a defining element of all Dinan exhausts. In contradiction to the aggressiveness resulting from open valves, when the valves are closed, all gasses are forced into the muffler for sound deadening and exit the two inner tips. Regardless of valve position, the intimate nature of the interior is retained so conversation can continue without an excessively loud drone courtesy of numerous drone abatement technologies in the can. With the Dinan exhaust equipped on the M340i/M440i you get the best of both worlds, aggressive tone/sound and civility. A combination that is a paramount to any M exhaust, and now by virtue of tip count, the M340i and M440i. Welcome to the illustrious family. Stainless Steel - Black Tips - G20 / G22 / G23 / G26

• Stock exhaust valve actuator reused and another valve/actuator added to the opposing side promoting even flow regardless of valve position
• Computer controlled exhaust valves are retained and limit noise during low speed driving and open fully during high-load conditions
• Twin exhaust valves are a whopping 76mm diameter, making them 30% less restrictive than the OE valves
• Quad 4" diameter clamp-on, double-walled, ceramic black and laser engraved exhaust tips
• Easy bolt-on installation with included mounting hardware
• Larger diameter piping for increased flow (76mm vs 70mm)
• More Power: + 6 HP @ 6600 RPM, + 5 LB-FT @ 6600 RPM
• 100% 304 stainless steel construction
• 4 lbs lighter than the stock system
• Enjoyably louder, sportier sound

Upgrade your BMW M340i or M440i with the Dinan 20-24 BMW M340i/M440i Free Flow Axleback Exhaust System, featuring a high-performance design crafted from 100% T304 stainless steel for durability and corrosion resistance. This system replaces the factory exhaust with larger 76mm tubing, significantly reducing restrictions compared to the stock 70mm pipes, which results in improved exhaust flow and increased horsepower and torque. The twin exhaust valves, controlled electronically, allow seamless transition between a refined, quieter operation during everyday driving and an aggressive, sportier sound when open. These valves are integrated with the factory system, maintaining low-speed noise limits and opening fully under high-load conditions for maximum performance. The quad 4-inch diameter ceramic black tips are double-walled and laser engraved, adding a sleek aesthetic to the vehicle's rear end while enhancing sound projection. The system is designed for easy bolt-on installation with included hardware, making it a straightforward upgrade for enthusiasts seeking both performance and style. With an increase of 6 horsepower and 5 lb-ft of torque at 6600 RPM, this exhaust system delivers tangible power gains while maintaining the comfort and civility expected in daily driving. The louder, sportier exhaust tone complements the vehicle's sporty character, creating an exhilarating driving experience without excessive drone thanks to built-in sound dampening technologies. The system is lightweight, weighing 4 pounds less than the stock setup, contributing to improved handling and responsiveness. Compatible with a range of BMW G20, G22, G23, and G26 models from 2020 to 2022, the Dinan exhaust system is an ideal upgrade for drivers who desire enhanced performance, aggressive sound, and a refined aesthetic in one comprehensive package.

Features:

• Constructed from durable 100% T304 stainless steel for corrosion resistance and longevity

• Larger 76mm tubing for increased exhaust flow and reduced restrictions compared to stock 70mm pipes

• Dual electronically controlled exhaust valves for seamless transition between quiet and aggressive modes

• Quad 4-inch diameter ceramic black tips with double-walled construction and laser engraving for a sleek appearance

• Easy bolt-on installation with included mounting hardware

• Enhanced performance with +6 HP and +5 lb-ft of torque at 6600 RPM

• Weight reduction of 4 pounds compared to stock system improves handling

• Compatible with 2020-2022 BMW M340i and M440i models (G20, G22, G23, G26)

Fitment:
BMW M340i Base 2020
BMW M340i Base 2021
BMW M340i Base 2022
BMW M340i Base 2023
BMW M340i Base 2024
BMW M340i Base 2025
BMW M340i Base 2026
BMW M340i xDrive Base 2020
BMW M340i xDrive Base 2021
BMW M340i xDrive Base 2022
BMW M340i xDrive Base 2023
BMW M340i xDrive Base 2024
BMW M340i xDrive Base 2025
BMW M340i xDrive Base 2026
BMW M440i Base 2021
BMW M440i Base 2022
BMW M440i Base 2023
BMW M440i Base 2024
BMW M440i Base 2025
BMW M440i Base 2026
BMW M440i Gran Coupe Base 2022
BMW M440i Gran Coupe Base 2023
BMW M440i Gran Coupe Base 2024
BMW M440i xDrive Base 2021
BMW M440i xDrive Base 2022
BMW M440i xDrive Base 2023
BMW M440i xDrive Base 2024
BMW M440i xDrive Gran Coupe Base 2022
BMW M440i xDrive Gran Coupe Base 2023
BMW M440i xDrive Gran Coupe Base 2024