Evolution Racewerks ER S58 OPF/GPF Catless Primary Downpipes for BMW X3M & X4M (F97/F98) – 3-inch Stainless Steel, 2019+, Competition

Evolution Racewerks ER S58 OPF/GPF Catless Primary Downpipes for BMW X3M & X4M (F97/F98) – 3-inch Stainless Steel, 2019+, Competition

£1,273.63
£1,273.63
£1,369.50
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Evolution Racewerks ER BMW F97 F98 OPF GPF Catless Primary Downpipes for X3M and X4M S58

Unlock serious performance from your BMW S58 with the Evolution Racewerks Competition Series Catless Primary Downpipes. Designed specifically for OPF GPF equipped models, these ER catless downpipes fit the 2019 onwards BMW F97 X3M and F98 X4M, including Competition models. If you are searching for BMW X3M downpipe, BMW X4M downpipe, S58 catless downpipe, X3M Competition decat, X4M Competition decat, OPF GPF downpipe or ER downpipes for S58, this is the high quality, track-proven solution that delivers faster turbo spool, sharper throttle response and a stronger, broader powerband.

From the factory, your twin turbo S58 engine is choked by restrictive primary catalytic converters. The OEM honeycomb substrate creates back pressure and turbulence that slows exhaust flow and robs power. ER replaces those primary cats with mandrel bent 3 inch stainless steel catless primary downpipes engineered for maximum flow and durability. The result is a significant improvement in exhaust velocity that helps your turbos spool faster and your engine breathe better. Perfect for tuned S58 Stage 1 and Stage 2 builds, and fully compatible with the stock exhaust or any aftermarket cat-back.

We have installed these on customer X3M and X4M builds and the feedback has been excellent. Expect crisper response, harder mid-range pull and a more aggressive turbocharged soundtrack. If you want the best BMW F97 F98 catless downpipe upgrade for OPF GPF cars, Evolution Racewerks has you covered.

Key features and benefits

  • Direct fit for BMW 2019 onwards F97 X3M and F98 X4M with OPF GPF, including Competition
  • Replaces restrictive primary catalytic converters only for maximum flow on OPF GPF cars
  • 3 inch mandrel bent piping for smooth, high velocity exhaust flow
  • 100 percent stainless steel construction for strength and corrosion resistance
  • 100 percent TIG welded for consistent, high quality welds
  • Precision CNC machined turbocharger V-band flanges for a perfect seal
  • Retains factory slip joint style connection to the mid section
  • Compatible with factory or aftermarket exhaust systems
  • Improved throttle response and faster turbo spool
  • Higher peak horsepower and torque potential with a stronger torque curve
  • Track tested durability and performance
  • Includes all required hardware for installation
  • Available in Brushed, Polished or Black Thermal Coated finishes
  • Limited Lifetime Warranty from Evolution Racewerks

Finish and coating options

Choose from Brushed or Polished stainless steel, or upgrade to ER’s high temperature Black Ceramic Thermal Coating. The ceramic coating helps keep exhaust heat inside the downpipe, reducing underbonnet temperatures and maintaining exhaust gas velocity for lower back pressure. ER’s coating resists up to 2000°F and also adds additional corrosion protection.

Compatibility

  • BMW F97 X3M 2019 onwards with OPF GPF, including Competition
  • BMW F98 X4M 2019 onwards with OPF GPF, including Competition

Only fits OPF GPF models. For Non OPF GPF vehicles, you will need: Evolution Racewerks ER BMW F97 F98 Catless Primary Downpipe X3M and X4M.

Part numbers

  • BM-EXH025S-OPF – Brushed
  • BM-EXH025P-OPF – Polished
  • BM-EXH025TB-OPF – Thermal Coated Black Finish

Why choose Evolution Racewerks catless downpipes for your S58

ER’s Competition Series downpipes are engineered for enthusiasts who demand the best BMW X3M downpipe and BMW X4M downpipe for power, sound and reliability. The combination of 3 inch mandrel bends, CNC flanges and TIG welded stainless steel delivers consistent fitment and long term durability. Ideal for remapped S58 engines and a great foundation for Stage 2 tuning, these OPF GPF primary decat downpipes free up the exhaust path where it matters most.

Fitting and installation

Professional fitting is recommended. Nforcd offers installation services at our Warwickshire workshop. To request a fitting quote or to book, email Sales@nforcd.com.

Manufactured by

Evolution Racewerks ER

Warranty

Evolution Racewerks Limited Lifetime Warranty non transferable.

Important notes

These are catless primary downpipes for OPF GPF equipped vehicles. Intended for off road or motorsport use only where local laws permit. Check local regulations before purchase and installation.

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