Milltek Hi-Flow Sports Cat & Downpipe for BMW M3 E90 4.0 V8 Saloon/Sedan 2007–2011 | For Milltek Sport Cat-Back Only | Lambda Wiring Extension Required | S65 V8 | Part No. SSXBM1038

Milltek Hi-Flow Sports Cat & Downpipe for BMW M3 E90 4.0 V8 Saloon/Sedan 2007–2011 | For Milltek Sport Cat-Back Only | Lambda Wiring Extension Required | S65 V8 | Part No. SSXBM1038

£1,945.31
£1,945.31
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Milltek Hi-Flow Sports Cat and Downpipe for BMW E90 M3 4.0 V8 Saloon 2007–2011

Part Number: SSXBM1038

Unlock the full character of your BMW M3 E90 4.0 V8 with the Milltek Hi-Flow Sports Cat and Downpipe. Designed specifically to mate to Milltek Sport cat-back systems only, this premium UK-made performance exhaust upgrade delivers freer-flowing gas movement, a sharper throttle feel and a deeper, crisper V8 soundtrack without unwanted drone. Ideal for enthusiasts searching for a BMW E90 M3 sports cat, high flow catalytic converter, performance downpipe or Milltek M3 exhaust upgrade.

Why choose Milltek for your BMW M3 E90

Each system is designed, developed and hand-finished in the UK by skilled craftsmen using aerospace-grade type 304 non-magnetic stainless steel throughout. This premium material resists discolouration and is built to last. Precision mandrel bending maintains a constant radius for optimised gas flow, with carefully increased bore sizes over stock to support performance without sacrificing mid-range torque. Every Milltek exhaust undergoes an extensive acoustic development programme to deliver a sporty, refined tone that avoids NVH, drone and cabin resonance.

Key features and benefits

  • Hi-Flow Sports Catalyst and Downpipe for improved exhaust flow and performance potential
  • Direct fit to Milltek Sport cat-back systems only for the E90 M3 4.0 V8
  • T304 stainless steel construction for durability and corrosion resistance
  • Mandrel-bent pipework for consistent flow and response
  • Developed sound that is deep, crisp and performance focused without drone
  • UK engineered and hand-finished for exceptional quality

Fitment

  • BMW M3 E90 4.0 V8 Saloon Sedan 2007–2011
  • For Milltek Sport cat-back systems only
  • Part number: SSXBM1038

Installation notes

  • Lambda sensor wiring requires extension when installing this system
  • Professional fitting recommended. Nforcd offers expert installation in Warwickshire. Request a quote: Sales@nforcd.com

What you will notice

  • Freer-revving feel and enhanced throttle response from reduced back pressure
  • Deeper, motorsport-inspired V8 tone that remains civilised on the road
  • Top-tier build quality that looks as good as it performs

Trusted by enthusiasts

We have fitted and run Milltek systems on our own builds and for many Nforcd customers. Feedback is consistently positive on quality, fit and the addictive, refined soundtrack. If you are searching for the best BMW M3 E90 sports cat and downpipe, Milltek E90 M3 exhaust, high flow cat M3 or performance exhaust upgrade for the S65 V8, this is a stand-out choice.

Search-friendly terms

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