# Dinan 16-18 BMW 340i Freeflow Axleback Exhaust System -Black

Dinan engineers designed the F30 340i and F32 440i exhaust to improve exhaust flow by reducing back pressure, resulting in increased power output and a great sporty sound that is civilized when you want it to be, and pleasantly aggressive under hard acceleration. Not only is the tone improved but the additional burbles and pops that come with it are simply intoxicating. Dinan also incorporates a Helmholtz chamber design that reduces resonance or"drone" at low RPM.

-   Twin 89mm (3.5") laser engraved, polished or ceramic black exhaust tips
-   Uses the factory brackets and hangers for a factory-like fitment
-   More Power: + 6 HP @ 6600 RPM, + 5 LB-FT @ 6600 RPM
-   100% 304 stainless steel construction
-   Helmholtz chamber to reduce drone
-   Enjoyably louder, sportier sound

This Part Fits:

Year

Make

Model

Submodel

2016-2018

BMW

340i

Base

2016-2018

BMW

340i xDrive

Base

2017-2020

BMW

440i

Base

2017-2020

BMW

440i xDrive

Base

## Details

- **Price:** 2391.54 CAD
- **Vendor:** Dinan
- **Type:** Axle Back

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2391.54 CAD | In stock |

## Images

- Photo - Primary
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/dinan-16-18-bmw-340i-freeflow-axleback-exhaust-system-black)
> Updated: 2026-07-05