Supersprint BMW Z4 E89 N54 Downpipes 35i/35is (2009-2016) - Catless Decat Pre-Cat Delete Front/Turbo Outlet Pipes, High-Flow 304 Stainless, Pair | Track/Race Use | Part 982011

Supersprint 982011 Front De-cat Pipes for BMW Z4 E89 35i and 35is N54

Transform your Z4 E89 3.0 twin turbo with Supersprint part 982011. This pair of turbo outlet front pipes replaces the restrictive primary catalysts for a freer flowing exhaust path, quicker spool, stronger mid‑range and a harder, motorsport‑style note. A proven upgrade for anyone chasing sharper throttle response, more power and a cleaner, OEM‑plus fit on the 35i and 35is N54B30 models.

Key benefits

• Real‑world gains of up to 25 bhp at the wheels with supporting calibration
• 304 grade stainless steel construction with precision TIG welds for longevity
• Smooth radius bends reduce backpressure and improve turbo efficiency
• OE‑style mounting with spring joints and sealing rings to accommodate heat expansion
• Pre‑installed bungs for primary and secondary oxygen sensors to retain factory lambda placement
• Supplied as a matched pair for the twin‑scroll N54 layout
• Backed by a 3 year manufacturer warranty

Why enthusiasts choose Supersprint for the N54 Z4

Supersprint’s reputation for accuracy and durability makes these an ideal choice for a Stage 2 style setup on the E89 chassis. The fit is spot on, the sound is purposeful without drone when combined with a quality cat‑back, and flow improvements are immediately noticeable. We have installed these on customer cars at MJ Modifications and the feedback has been consistently excellent for driveability, performance and build quality.

Fitment guidance

• Engine light prevention: an ECU calibration or remap is strongly recommended after primary catalyst removal. Alternatively, extending the lambda wiring to place the sensors after the secondary converters or after Supersprint sport cats can help manage MIL warnings.
• Recommended extra hardware for a fresh, leak‑free install:
  • 2 x genuine BMW V‑band clamps for the turbo outlets
  • 2 x turbo to downpipe metal gaskets
  • 1 x lower joint gasket kit for the mid‑section connection
• Professional installation available at MJ Modifications, Warwickshire. Request a fitting quote: info@mjmodifications.co.uk

Vehicle compatibility

• BMW Z4 E89 35i, N54 twin‑turbo 3.0, 2009 to 2016
• BMW Z4 E89 35is, N54 twin‑turbo 3.0, 2010 to 2016
• BMW Z4 E89 35is Mille Miglia edition, N54 twin‑turbo 3.0, 2010

Part number

Supersprint 982011

Manufacturer and warranty

Supersprint high‑performance exhaust components

3 year warranty included

Search phrases and related terms

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Note: removal of primary catalytic converters affects emissions compliance. For off‑road or motorsport environments where permitted.