Boxster 986 1997-1999 Race Manifolds De-Cat Pipes NEM3005

Nemesis UK

SKU: NEM3005

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Porsche Boxster 986 1997 -1999

Race Manifolds/Headers

With De-cat Catalytic Converter Delete

(Recommended for track use only)

Free-flowing headers without catalytic converters; designed for maximum power and exhaust flow for race and track applications.


  • Fits all 986 Boxster / S vehicles 1997-1999
  • Increases power and improves throttle response
  • Saves weight from the rear of the vehicle compared to the full OEM exhaust
  • Constructed from equal-length T304 stainless steel C.N.C. mandrel-bent tubing for improved torque and equalised engine pulsing
  • F1 style merge collectors for maximum exhaust flow and better scavenging
  • Will work with stock muffler or any aftermarket cat-back exhaust system designed to fit like the OEM
  • Direct replacement for the OEM headers with no cutting or welding required

INSTALLATION NOTE: Slight modifications to the factory coolant line are required on vehicles equipped with a Tiptronic transmission - Flexible Stainless Steel hose can be purchased from a local motor factors to reroute the new line for proper clearance.

INSTALLATION NOTE: To ensure proper header seal, after initial heat cycle, tighten all exhaust bolts to the OEM torque specs.

DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. We suggest pairing this product with racing software to prevent fault codes and check engine lights. 

Nemesis UK Performance Ltd

Exotic Car Performance Specialist

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