Exhaust with valve sports catalysts 250 cells CES3 Capristo Porsche 997.1 Turbo/S/GT2/2RS 2004-2008

The iconic CAPRISTO valved exhaust system offers the best of both worlds with its ability to produce an aggressive exhaust note under acceleration and a more subdued sound for city driving.

This function is possible using vacuum-actuated valve flaps that open and close depending on driving conditions and driver input. At lower engine speeds and during cruise operation the valves are closed and produce a deeper exhaust note. With the throttle fully open, the valves open releasing the full symphony of the engine.

The exhaust valves are controlled by back pressure and user programmable via the control module CES-3 control included. The programmable control unit provides 3 modes operated via a remote control:

Cruise exhaust valves open at higher rpm

Sport exhaust valves open at lower engine speeds and hard acceleration

Open exhaust valves stay open

CAPRISTO exhaust systems are designed and manufactured using advanced 3D laser scanning, engineering CAD, digital prototyping and CNC bending/milling in our factory in Germany. Each system is made of high quality T309 (1.4828) stainless steel and hand polished to a mirror finish. After extensive research, this specific alloy was chosen for its sonic resonance, low weight and durability properties which are close to the properties of Inconel (used in F1).

250 CELL SPORTS CATALYST:

High performance sports catalytic converters feature a 250 cell per square inch substrate made from the highest quality materials currently available, designed to improve airflow for your vehicle and increase performance.

The cell count of a catalytic substrate refers to the number of holes per inch square and is a direct indication of the flow capabilities of that substrate. The fewer holes the larger the hole needs to be to fill a square inch, a larger hole subsequently lets more exhaust flow.

All this high flow won't be It helps if the substrate is "squeezed" into a small diameter container or tube. For this reason, CAPRISTO sport cats are packaged in 5.2-inch packages to maximize exhaust gas flow and operation of the valved exhaust system.

< strong>IMPORTANT

*This exhaust installs directly into existing OEM mounting points*

*Recommended for off-road and track use only *

Replacing the OEM catalytic converter may activate a Check Engine Light (CEL).

To disable a recurring CEL you will need to tune the 'ECU or use 02 sensor extensions.