I've recently finished installing a full factory
PSE (Porsche
Sports Exhaust) on my MY 2005 boxster 987 S. Along with the install i've also added an additional switch to allow manual control of the
PSE to prevent the ECU control reverting the system to quiet mode between 20 and 40 mph. The addition of the switch also allows the
PSE to remain in the "loud " state when the ignition is switched off , so you no longer need to reselect the
PSE or sport button on restarting the car. The
PSE rear silencers are a direct replacement for the 3.2 units and bolt straight on , no mods to the rear bumper, support hangars or tailpipe outlet are required. As my car was already equipped with
sport chrono , the activation of the
PSE is taken from this input (as per OEM installation) though the overide button also does the same job. Fitting and piping up the control solenoid in the engine compartment was also pretty straight forward as all the fixing points and vacuum lines are present. Only the piping to the vacuum control valves needed to be added , no drilling into vacuum manifolds is required. The only additional wiring required was between the rear ECU (DME) and the solenoid itself , just two wires. The overide switch I installed is a plug in adapter between the solenoid and the plug that supplies it , so its also applicable as a retro fit to standard factory fit
PSE systems too (Boxster, Cayaman and 997).
Here are some pics.
PSE exhaust:
Standard Exhaust
Removing the standard exhaust : Note the top rear bolt is the most difficult to access. Wire brushing the threads and using plenty of penetrating / disassembly spray over a period of hours beforehand does help.
PSE solenoid installed and piped up. Takes vacuum from the change over valve solenoid between cylinders 3 and 4 by fitting a T piece.
Removing rear carpet from rear boot/ trunk allows access to unused rubber grommet. Wiring passed through here and then through to passenger compartment.
Wiring into the rear DME - plug locations C14 used for the
PSE activation on early 2005 and 2006 cars.
I used a repair pin to add the connector for C14 in the plug
Here is the Kit I made up and installed for the manual overide switch of the
PSE. It would also apply to vehicles already ftted with a
PSE from the factory. There is no need to cut any of the existing wiring to install.
Manual overide switch for
PSE. This is the easiest location to fit , requires the least work to run cables to.
Results :
PSE switched "OFF" - quiet mode.
PSE switched "ON" - loud mode
UPDATE :
I've now made up a bracket to hold the
PSE overide switch that sits in place of the cigarette holder in the ashtray. The existing part is easilly removed and substituted with the new:
With new switch and bracket installed :
Linear Mode
