Factory Sport (switchable) exhaust install

[lumpoire]

Considering installing a factory sport (switchable) exhaust system on my 2003 996 C2 cab. They seem to be available for about $1800.

My questions;

Anybody been there, done that?

Does the OEM harness have provisions for the switches? Fishing wires through this car is not a fun task.

Is there a install manual anywhere for this?

Will it work with my current tips?

Any extra parts needed for the install?

I sent an email to the sellers asking what's included, but no response yet. Love the whole idea of switch on/switch off!

Thanks,

Mario

[Loren]

Anybody been there, done that?

Yes, many have. Do a search here for detailed descriptions.

Does the OEM harness have provisions for the switches? Fishing wires through this car is not a fun task.

No wiring in the harness unless your car was ordered with PSE. Only one wire needs to be run from the engine to the dash. Or, some folks do not use the switch as the PSE default to always open (loud).

Is there a install manual anywhere for this?

Yes, in the TSBs for Carrera 996.

Will it work with my current tips?

Yes, you take the tips off your old mufflers and put them on the new PSE mufflers.

Any extra parts needed for the install?

Not usually. The switch is sold seperately but otherwise everything you need comes in the PSE kit. (again see the TSB for a list of parts)

[lumpoire]

Great stuff here, Thanks!!!!

Anybody been there, done that?

Yes, many have. Do a search here for detailed descriptions.

Does the OEM harness have provisions for the switches? Fishing wires through this car is not a fun task.

No wiring in the harness unless your car was ordered with PSE. Only one wire needs to be run from the engine to the dash. Or, some folks do not use the switch as the PSE default to always open (loud).

Is there a install manual anywhere for this?

Yes, in the TSBs for Carrera 996.

Will it work with my current tips?

Yes, you take the tips off your old mufflers and put them on the new PSE mufflers.

Any extra parts needed for the install?

Not usually. The switch is sold seperately but otherwise everything you need comes in the PSE kit. (again see the TSB for a list of parts)

[jalabarba]

Considering installing a factory sport (switchable) exhaust system on my 2003 996 C2 cab. They seem to be available for about $1800.

My questions;

Anybody been there, done that?

Does the OEM harness have provisions for the switches? Fishing wires through this car is not a fun task.

Is there a install manual anywhere for this?

Will it work with my current tips?

Any extra parts needed for the install?

I sent an email to the sellers asking what's included, but no response yet. Love the whole idea of switch on/switch off!

Thanks,

Mario

[996noob]

Anybody been there, done that?

Yes, many have. Do a search here for detailed descriptions.

Does the OEM harness have provisions for the switches? Fishing wires through this car is not a fun task.

No wiring in the harness unless your car was ordered with PSE. Only one wire needs to be run from the engine to the dash. Or, some folks do not use the switch as the PSE default to always open (loud).

Is there a install manual anywhere for this?

Yes, in the TSBs for Carrera 996.

Will it work with my current tips?

Yes, you take the tips off your old mufflers and put them on the new PSE mufflers.

Any extra parts needed for the install?

Not usually. The switch is sold seperately but otherwise everything you need comes in the PSE kit. (again see the TSB for a list of parts)

If I managed to find used PSE mufflers and wanted to install the switch, what parts would I need to get in order to control the switchover valve? I could follow the TSB and parts list to the letter, but is the there a short-cut circuit I could rig up with just the original switch and a relay and some wiring? I don't need all the functions of the speed range switching, etc..

I was wondering if the job could be done by getting the PSE switch, harness + relay (996 618 980 03) and switchover valve (996 605 123 01), some vacuum tubes and accessories, and tap the vacuum from the existing canister line, and control the PSE with that.

Any advice?

Edited March 16, 2010 by 996noob

[berty987]

The valves that control the exhaust are powered to close the bypass ie make the exhaust quiet. If its wired anything like the later 997/ 987 , then the switch on the dash is a momentary pushbutton which sends a signal to the rear ECU (DME) control unit . This unit internally switches the PSE on an off. The DME connects to the solenoid valve on one side of its two terminals (switching to ground when the dash switch is pressed) the other terminal has a power feed +12V . If you want to control the PSE as porsche intended , you will probably need the switch on the dash plus coding of the rear DME , then you would need to add the wiring from the DME to the solenoid control valve for the vacuum. You would also need to pick up a live feed for the other side of the solenoid if the fitting kit wiring loom didnt include this part. I retro fitted a fully operational PSE to my 2005 MY 987S , but needed to add some wiring for the solenoid myself , as there was no kit available. Basically it was a wire from C14 of the DME to the PSE solenoid and a live feed to the other side. Since I already had sport chrono I didnt need to add the wiring from the dash to the DME. After wiring up the car needed to be coded for the PSE option to allow the rear ECU (DME) to activate the terminal C14 to switch the PSE on and off.

[996noob]

The valves that control the exhaust are powered to close the bypass ie make the exhaust quiet. If its wired anything like the later 997/ 987 , then the switch on the dash is a momentary pushbutton which sends a signal to the rear ECU (DME) control unit . This unit internally switches the PSE on an off. The DME connects to the solenoid valve on one side of its two terminals (switching to ground when the dash switch is pressed) the other terminal has a power feed +12V . If you want to control the PSE as porsche intended , you will probably need the switch on the dash plus coding of the rear DME , then you would need to add the wiring from the DME to the solenoid control valve for the vacuum. You would also need to pick up a live feed for the other side of the solenoid if the fitting kit wiring loom didnt include this part. I retro fitted a fully operational PSE to my 2005 MY 987S , but needed to add some wiring for the solenoid myself , as there was no kit available. Basically it was a wire from C14 of the DME to the PSE solenoid and a live feed to the other side. Since I already had sport chrono I didnt need to add the wiring from the dash to the DME. After wiring up the car needed to be coded for the PSE option to allow the rear ECU (DME) to activate the terminal C14 to switch the PSE on and off.

I've been reading and re-reading the TSB for the installation of the PSE for 996 so that I can try to fully understand what's going on. I'm learning abit more each time I read it. My understanding is, for the 996, only the speed signal is taken from the DME, to switch the PSE off and on at some speed range, this feature I do not require, otherwise, the switch itself is connected to a relay, and relay connected to the switchover valve, via the harness. At this point, I am inclined to think that I should be able to run the circuit without the additional vacuum tank that comes with the PSE kit. Just wondering if anyone has DIY'ed the full PSE kit with switch on the 996, and perhaps help me understand better how it is wired. I know that quite a few here run the mufflers without the other parts, though.

[Loren]

If you want the PSE always on then don't bother to install anything.

The vacuum and electronics are only used to make the system quiet. The vacuum is used to close the bypass valve in each muffler - so without it the muffler are always louder.

[Orient Express]

Here is a write up of my PSE installation

[996noob]

If you want the PSE always on then don't bother to install anything.

The vacuum and electronics are only used to make the system quiet. The vacuum is used to close the bypass valve in each muffler - so without it the muffler are always louder.

While I agree with you that I'll probably be running them on loud mode most of the time, I need the switch for inspection purposes (inspection is annual) and when our "department of transport" cops come alongside the car (they'll stop you and give you a hefty fine).

[996noob]

Here is a write up of my PSE installation

Orient, thanks for the link to your write up. I'm going to go through it right now. Can I PM you if I have any questions? I'll post a summary of my understanding here so that we have something on Renntech for future reference.

[996noob]

If you want the PSE always on then don't bother to install anything.

The vacuum and electronics are only used to make the system quiet. The vacuum is used to close the bypass valve in each muffler - so without it the muffler are always louder.

While I agree with you that I'll probably be running them on loud mode most of the time, I need the switch for inspection purposes (inspection is annual) and when our "department of transport" cops come alongside the car (they'll stop you and give you a hefty fine).

I'm lining up a set of used PSE's very soon, without the vacuum or electrical circuits, so this write up is very appropriate for me.

Looks like I will not need to use a dedicated vacuum tank, as I suspected.

I have made up a list of parts based on the relevant TSB's for the install of PSE. However, I can't figure out why there are several different numbers for the harness, or is it that these part numbers are for a set of parts including the harness?

928 573 727 03 Y vacuum connector x2

928 574 717 03 L vacuum connector x4

917 355 021 00 SS Braided teflon vacuum hose (L=380mm) x2

999 512 069 02 Clamps for braided hoses x4

996 605 123 01 Switchover Valve

996 613 987 10 Switch (Right Side of Radio)

996 613 988 10 Switch (Left Side of Radio)

- "Tekalan" Vacuum lines

Harness numbers:

996 612 978 00 PSE electrical Harness, but may include Relay and Switchover valve?

or

996 612 980 03 PSE Harness? or Relay? or Both?

I'm confused by the last two part numbers, and possibly by ordering them I may not need to order some of the above parts as they may come with.

Unknown part numbers:

Bracket for Switchover Valve

Any advice on the part numbers?

Edited March 17, 2010 by 996noob

[Orient Express]

If anyone is interested, I have a complete PSE electrical and vacuum wiring kit available. The only thing you will need to add is the dash switch (left or right side, your choice). This kit is worth over $350 is bought new.

[996noob]

If anyone is interested, I have a complete PSE electrical and vacuum wiring kit available. The only thing you will need to add is the dash switch (left or right side, your choice). This kit is worth over $350 is bought new.

Should've said so earlier! Sending you a PM now.

Edited March 17, 2010 by 996noob