Masata Performance

BMW B58 Catted Downpipe with Integrated Heat Shield

Unlocking elite exhaust dynamics and hyper-responsive turbo spooling for the modern inline-six architecture.
MPN: MST6005
200 Cell High-Flow Sport Cat
Non-OPF Models Only

Elevate your driving experience with the Masata Performance Downpipe—a premium testament to engineering excellence, design execution, and pure track-tested capability. Conceived and rigorously developed in the United Kingdom by dedicated automotive purists, this component represents the perfect marriage of raw power and uncompromised structural functionality.

By radically altering the restrictive pathing of factory components, the Masata Downpipe optimizes overall backpressure metrics. The results are stark and immediate: significantly quicker turbocharger spool-up curves, instantaneous engine response, and a profoundly deep, resonant acoustic signature that amplifies your BMW’s signature sound profile without introducing cabin drone.

Engineering Excellence

Premium T-304 Stainless Steel

Assembled with heavy-duty mandrel-bent contours to maximize high-velocity exhaust flow and structural integrity under prolonged thermal expansion.

Integrated Thermal Shielding

Wrapped in a comprehensive structural heat shield purposefully engineered to minimize engine-bay radiant heat, safeguarding surrounding components.

Optimized 200 CPSI Cat

Features an efficient, high-flow metallic sport catalytic substrate matrix providing substantial power potential while keeping exhaust emissions structured.

Flawless Direct Fitment

Crafted precisely to match factory mounting locations, brackets, and flanges seamlessly for an uncompromising structural installation experience.

Technical Specifications
Brand / Manufacturer
Masata UK
Manufacturer Part Number
MST6005
Engine Platform
BMW B58 3.0L Single-Turbo I6
Substrate Configuration
200 Cell Sport Metallic Core
Material Finish
Brushed T-304 Stainless Steel
Exhaust Compliance Fit
Pre-OPF (Non-OPF) Configurations
Installation Style
Direct Bolt-on Upgrade
Verified Vehicle Compatibility Matrix

Specifically verified for vehicle production cycles utilizing the BMW B58 power unit lacking an Otto Particulate Filter (Non-OPF models).

BMW 1 & 2 Series
  • BMW 1 Series F20 / F21 — M140i & M140i xDrive (09/2015 — 06/2019)
  • BMW 2 Series F22 / F23 — M240i & M240i xDrive (09/2015 — 06/2017)
  • BMW 2 Series F22 / F23 — M240i & M240i xDrive LCI (09/2016 — 12/2019)
BMW 3 & 4 Series
  • BMW 3 Series F30 — 340i & 340i xDrive LCI (10/2014 — 10/2018)
  • BMW 3 Series F31 — 340i & 340i xDrive LCI (10/2014 — 06/2019)
  • BMW 3 Series F34 — 340i & 340i xDrive GT LCI (09/2015 — 12/2019)
  • BMW 4 Series F32 / F33 — 440i & 440i xDrive (04/2015 — 02/2017)
  • BMW 4 Series F32 / F33 — 440i & 440i xDrive LCI (05/2016 — 12/2019)
  • BMW 4 Series F36 — 440i & 440i xDrive Gran Coupé (03/2015 — 02/2017)
  • BMW 4 Series F36 — 440i & 440i xDrive Gran Coupé LCI (05/2016 — 12/2019)
BMW 5, 6 & 7 Series
  • BMW 5 Series G30 — 540i & 540i xDrive (10/2015 — 06/2019)
  • BMW 5 Series G31 — 540i xDrive (03/2016 — 06/2019)
  • BMW 6 Series G32 — 640i & 640i xDrive GT (09/2016 — 06/2019)
  • BMW 7 Series G11 / G12 — 740i, 740i xDrive & 740Li (B58 Engine Platform)
Important Use & Compliance Notice: This performance component is engineered explicitly for closed-course track racing, competition, and off-road motorsport configurations. It does not possess TÜV certification and cannot be guaranteed to clear standard road emissions checks or regional inspection tests (such as UK MOT requirements). Utilizing engine software tuning/ECU remapping following installation is highly advised to optimize efficiency parameters and avoid diagnostic check-engine lights (CEL).