HJS ECE Downpipe & Cat Euro 6 for Mx40i Models (300 cell) - 90812020
Out of stock
Delivery & Availability
Delivery & Availability
Not all products are held in stock due to the specialist nature of many performance parts. While most items are available for next working day dispatch, selected products may carry extended supplier or production lead times.
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Description
HJS ECE Downpipe & Cat Euro 6 for Mx40i Models (300 cell) - 90812020
Product Overview
This Milltek Sport downpipe upgrade is designed for the vehicles listed under Fitment below in the HJS ECE Downpipe & Cat Euro 6 for Mx40i Models (300 cell) - 90812020 configuration. The larger, freer-flowing exhaust path is intended to reduce restriction in the front section of the exhaust and is particularly suited to performance-focused vehicles and supporting engine software where required.
Product Details
The HJS tuning ECE Downpipes are specifically designed to be fully road legal within Europe (R103 compliant) while still providing the benefits of the High Flow Sports Cat. HJS ECE Cats do not require engine ECU software upgrades and will not trigger a check engine light, ranging between 200 to 300 cells and designed to fit with the OE cat back system or Milltek Sport cat back systems.
Fitment
- BMW 1 Series M140i 3 & 5 Door (F20 & F21 LCI, Non-OPF) (2015-2018)
- BMW 2 Series M240i Coupe (F22 LCI, Non-OPF & None xDrive) (2015-2018)
- BMW 3 Series F30 & F31 M340i Saloon & Touring (LCI models, xDrive & non xDrive Models) (2017-2019)
- BMW 3 Series F31 M340i Touring (2018-2019)
- BMW 4 Series F32 & F33 M440i Coupe & Grand Coupe (xDrive & non xDrive Models) (2017-2019)
Key Features
- Vehicle-specific Milltek Sport fitment for the application shown above.
- Manufactured from high-quality 304L stainless steel for corrosion resistance and long-term durability.
- Designed and manufactured in the UK by Milltek Sport.
- Engineered as a performance exhaust upgrade with fit, flow and sound in mind.
- This type of exhaust modification may be intended for motorsport/off-road use and can affect emissions compliance, warning lights, warranty and road legality. Check the requirements for your vehicle and intended use before purchase.
Professional Fitting
Fitting is available - please contact us for a quote.


