Active Autowerke BMW S58 Catless Downpipe for F97 X3 M & F98 X4 M (2019+) - Decat Performance Bolt-On 304 Stainless with 4.5" Cast Upper - Part 11-064X

Active Autowerke BMW S58 Catless Downpipe for F97 X3 M & F98 X4 M (2019+) - Decat Performance Bolt-On 304 Stainless with 4.5" Cast Upper - Part 11-064X

£1,328.28
£1,328.28
£1,328.28
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Active Autowerke BMW S58 F97 F98 Catless Downpipe for X3 M and X4 M

Unlock serious performance from your BMW S58 with the Active Autowerke catless downpipe. Engineered for the F97 X3 M and F98 X4 M, this race-only de-cat downpipe improves exhaust flow for quicker turbo spool, sharper throttle response and more power potential. If you are building a fast BMW X3 M or BMW X4 M and searching for S58 downpipe, catless downpipe, decat downpipe, performance downpipe, BMW X3M downpipe, BMW X4M downpipe, F97 downpipe or F98 downpipe, this is the upgrade you have been looking for.

  • Designed specifically for the BMW S58 twin-turbo engine in the F97 X3 M and F98 X4 M
  • Race-use catless design to reduce backpressure and maximise flow
  • Improves turbo response and helps the S58 rev and spool faster
  • Direct bolt-on fitment to the OEM exhaust system
  • Precision TIG-welded 304 stainless steel for strength and durability

Why choose the Active Autowerke S58 catless downpipe

The factory S58 downpipes are restrictive, slowing exhaust gas speed and delaying turbo spool. Active Autowerke’s Signature design uses a large cast 4.5 inch upper to a 3 inch stainless system, then transitions to 70 mm to meet the OEM exhaust without ever dropping below stock diameter. The result is reduced backpressure, quicker turbo response and a stronger, freer-revving feel. It is an ideal foundation for tuned S58 builds where maximum flow and durability matter.

Key features

  • Casted upper stainless steel V-band for precise fitment
  • 4.50 inch diameter cast upper for maximum flow into the system
  • 3 inch stainless steel piping for high flow and durability
  • Transitions to 70 mm to mate perfectly with the OEM exhaust
  • Stainless flex joints for reliability
  • TIG-welded 304 stainless steel construction
  • Precise bolt-on installation with no cutting or welding required
  • Made in Miami, Florida

Compatibility

  • BMW F97 X3 M 2019+
  • BMW F98 X4 M 2019+

Part number

11-064X

Fitting and support

Want it supplied and fitted by specialists Use Nforcd in Warwickshire for professional installation. Request a fitting quote at Sales@nforcd.com.

Important use notice

This product is part of the Active Autowerke Motorsport Collection and is for race and off-road use only. Not road legal. Check local laws before purchase and installation.

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