Exhaust System - Sports Exhaust System Installation: Overview
Tequipment5/05 ENU 2601 2
Exhaust System/Sports Exhaust System (I-no. XLF)
Note:
This Technical Information replaces the previous Technical Information dated January 3, 2006.
Changes/additions compared to the previous TI:
> Additional vehicle types added
Vehicle Type:
911 Carrera (997)/911 Carrera S (997)/911 Carrera 4 (997)/911 Carrera 4S (997)/911 Targa 4 (997)/911 Targa 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 behavior 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 perceptible exhaust motor noise) 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 Information
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.
Please also provide your sales department with this information and give the customer a copy of the first three pages of this Technical Information.
Tools
Working Times
References
Disclaimer