Performance ECU software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure (if applicable).                   ...

Performance ECU software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure (if applicable).                   ...

Aggressive track-designed exhaust system providing maximum flow and power; recommended for off-road and track use only.  Includes Deluxe Bolt-On Tips in Polished Chrome, Black Chrome, or Carrera GT Style Tips. Please specify when ...

Aggressive track-designed exhaust system providing maximum flow and power; recommended for off-road and track use only.  Includes Deluxe Bolt-On Tips in Polished Chrome, Black Chrome, or Carrera GT Style Tips. Please specify when ...

Aggressive track-designed exhaust system providing maximum flow and power; recommended for off-road and track use only.  Includes Deluxe Bolt-On Tips in Polished Chrome, Black Chrome, or Carrera GT Style Tips. Please specify when ...

Dramatically improve sports car sound and throttle response with upgraded Maxflo mufflers and inlet tubing.  Includes Deluxe Bolt-On Tips in Polished Chrome, Black Chrome, or Carrera GT Style Tips. Please specify when ordering   ...

Dramatically improve sports car sound and throttle response with upgraded Maxflo mufflers and inlet tubing.  Includes Deluxe Bolt-On Tips in Polished Chrome, Black Chrome, or Carrera GT Style Tips. Please specify when ordering   ...

Dramatically improve sports car sound and throttle response with upgraded Maxflo mufflers and inlet tubing.  Includes Deluxe Bolt-On Tips in Polished Chrome, Black Chrome, or Carrera GT Style Tips. Please specify when ordering     ...

Equal-length performance headers improve exhaust flow and sports car sound; Sport Headers include 200-cell HJS Sport Catalytic Converters.                               ...

Equal-length performance headers improve exhaust flow and sports car sound; Sport Headers include 200-cell HJS Sport Catalytic Converters.                               ...

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

Replaces the restrictive factory catalytic converters with much less restrictive straight-through pipes for maximum flow and performance.                                 ...

Replaces the heavy, restrictive, and redundant factory secondary catalytic converters with a straight-through tubing section for increased power, sound, and weight savings                       ...

Direct replacement for the factory air box that utilizes the OEM "ram air" fresh air ducts for lower intake temperatures and added power                             ...

High performance drop-in replacement for the factory air filter; fits OEM Porsche 986 Boxster air box for improved airflow and performance.                               ...