All older Porsche 911s like the 964 Carrera, 993 Carrera, 993 Turbo, 968 Boxster but also the 996 Carrera, 996 GT3 and the 996 Turbo come with 300 cpsi catalytic converters from the factory.
The sport cats on our sport exhaust system have 100 cells per square inch. We don’t offer 200 cell cats because these are more restrictive than the genuine 100 cell sport cats.
As long as the surface area of the 100 cell sport cats equals the surface area of the 300 cell stock cats, then there is no need to use the more restrictive 200 cell semi-sport cats.
The volume of the sport cat, its total surface area, the amount / content of the precious metal coating and the addition of heat shields are the key factors in having a long lasting trouble-free catalytic convertor.
Since we started using these 100 cell sport cats on our 996 Turbo sport exhausts in November 2000, we have never experienced check engine light problems or exhaust gas emission issues.
- Larger 130mm 100 cell sport cats
- Slightly louder at idle but loud and exotic under hard accelerations
- Maximum back pressure: 0.18 Bar / 2.65 psi (stock exhaust: 0.36 Bar / 5.3 psi)
- Minimum +18 hp
- Fits original and aftermarket tailpipes
- (Tailpipes not included)