Exhaust System - Sport Exhaust System Installation: Overview

911 (997)

5/05 FNU 2601

Date: Jan 3, 2006

Exhaust System/Sports Exhaust System (I No. XLF)

Note
This Technical Information replaces Technical Information No.2/05 dated February 24, 2005.

Changes/additions compared to the previous TI:

> Additional vehicle types added

> New switch console function with "Double tailpipe" button (only for vehicles without Sport Chrono package [I Nos. 639/640]) as of model year '06

> Designations changed and electric line wiring modified as of model year '06

Vehicle Type:
911 Carrera (997)/911 Carrera S (997)/911 Carrera 4 (997)/911 Carrera 4S (997)

Model Year:
As of 2005

Situation:
Installation Instructions

Engine Types:

M96.05 = 3.6 ltr. and M97.01 = 3.8 ltr.

Restriction:
Not approved for vehicles with power kit (I No. X51).

Information:
In the new sports exhaust system, the signal for activating the flaps in the rear mufflers does not come from the vehicle speedometer as before, but from the respective current map in the DME control module. This depends on the driving status and the accelerator pedal position among other things.

Sports exhaust system control:

^ Vehicles with Sport Chrono package (I Nos. 639/640): --> Switch console with "Sport" button (see Owner's Manual for the vehicle)

^ Vehicles without Sport Chrono package: New switch console with additional "Double tailpipe" button





The regulating time after pressing the button, determined by the response time of the pneumatics, is approx. 1-2 seconds.

Engine power and exhaust behaviour of the vehicle are not affected. The sports exhaust system is also available as a factory installed option for new vehicles under Exclusive option No. "XLF"!

In the "Double tailpipe" button, the display (diode lights up) for the activated (clearly audible exhaust note) or deactivated sports exhaust system has been changed as follows as of model year '06.

Model year '05:

Diode lights up in "Sport" button: sports exhaust system is active.

Diode lights up in the "Double tailpipe" button: sports exhaust system is not active.

The diode also flashes in the "Double tailpipe" button to indicate the regulating status of the flaps in the

rear mufflers.


As of model year '06:

Diode lights up in the "Sport" (I No. 639/640) and "Double tailpipe" buttons: sports exhaust system is active.





Parts Info:





Parts List:





Spare Parts:





Materials:

Information:
Identifying features when installed





The rear mufflers are marked on the outside as follows:

Left rear muffler (for cylinder bank 4-6): Porsche logo:

code 997/20 and Part No.: 997.111.612.02 (--> Figure 3 -Bottom inset-);

Right rear muffler (for cylinder bank 1-3): Porsche logo; code 997/19 and Part No.: 997.111.611.02.

Both identification codes can be read using a mirror, for example.

Left tailpipe: Porsche logo and Part No.: 997.111.982.20 (--> Figure 3-Top inset-);
Right tailpipe: Porsche logo and Part No.: 997.111.981.20.





Tools:








Working Times:





References:





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