# Dinan 13-13 BMW 135is Freeflow Axleback Exhaust System - Black

Dinan's free flow Axle-Back exhaust for the 135i Coupe and Convertible improves 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 harder acceleration. 100% stainless steel construction and exacting specifications ensure that the system fits correctly using the factory hangers and will resist corrosion for years to come. The design reduces overall weight as well and features 3.5'' polished stainless, or ceramic black, tips for a tasteful high-performance look.

-   Dual 3.5" laser engraved, polished or ceramic black exhaust tips
-   Uses the factory brackets and hangers for a factory-like fitment
-   Drone abatement technologies used to reduce cabin resonance
-   More Power: + 6 HP @ 6600 RPM, + 5 LB-FT @ 6600 RPM
-   100% 304 stainless steel construction
-   Enjoyably louder, sportier sound
-   Lighter than stock

This Part Fits:

Year

Make

Model

Submodel

2008-2013

BMW

135i

Base

2013

BMW

135is

Base

## Details

- **Price:** 2664.2 CAD
- **Vendor:** Dinan
- **Type:** Axle Back

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2664.20 CAD | In stock |

## Images

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

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/dinan-13-13-bmw-135is-freeflow-axleback-exhaust-system-black)
> Updated: 2026-07-05