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MillTek BMW F20 F21 F22 F31 HJS Tuning (300 Cell) ECE Downpipe (M140i, M240i, 340i, 440i)

Regular price $1,964.00 USD
Regular price $2,182.00 USD Sale price $1,964.00 USD
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With in-house production and engineering in the United Kingdom, they have been designing and developing exhaust systems for over 32 years. This experience has helped put Milltek on the map when it comes to performance exhausts, with offerings that range from Audi/Volkswagen to Porsche, BMW, and even Bentley. But, they don't stop there. Milltek has also made its presence felt in the motorsport community. Through partnerships with various race teams throughout the world, Milltek has gathered feedback on ways to improve their systems from enthusiasts at every level. Constructed of type-304 aircraft grade stainless steel, the quality is top-notch.

We present to you the 300 Cell ECE Approved HJS Tuning Downpipes which can be fitted with both Milltek Sport and OE Cat Back Systems that won't trigger an engine warning light and will also pass the MOT(Last updated on 22.10.2018).



  • HJS 300 Cell ECE Downpipe
  • High Flow for optimum performance
  • Quality 304 Graded Stainless Steel
  • MOT Friendly (Updated on 22.10.2018)
  • Fits both Milltek and OEM Cat Back System


Consists of:
1 x HJS ECE Downpipe & Cat Euro 6 for Mx40i Models (300 cell)



Pipe Ø: 3.15" (80.0mm) *


Compatibility Check

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.



BMW 1 Series M140i 3 & 5 Door (F20 & F21 LCI) 2015 and Later

BMW 2 Series M240i Coupe (F22 LCI) 2015 and Later

BMW 3 Series F30 & F31LCI 340i Saloon & Touring (xDrive & non xDrive Models) 2017 and Later

BMW 4 Series F32 & F33 440i Coupe & Grand Coupe (xDrive & non xDrive Models) 2017 and Later


Please contact us if you have any question(s) regarding the fitting service.


MillTek One Year Warranty


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