fun2k

In sport mode the valve opens after 3000rpm,without sport mode they open at 4000.you can hear the sound change in sport mode when the car is at standstill but once you start driving the valves stay closed below 3k and 4k.

i dont know what unplugging is technically but what it does is let the vavles stay open all the time especially below 3000rpm where the car sounds like poo with the vavles closed.

ttdan

unplug the electrical connector, not the vacuum hose!

Born2Run

Just unplugged mine today and damn it sounds great. Never going back!!

mikegee

can anyone post the pics of where this connector (s) is/are. Is there more than one to disconnect?
Thanks
mike

bob_dallas

I've searched around on this one but haven't seen a definitive answer. Is there no performance hit for leaving it unplugged all the time? I'm trying to figure out if there's a need for the valves to close for backpressure or otherwise in the lower RPMs. Has anybody dyno'd after unplugging to compare?

bob_dallas

https://rennlist.com/forums/997-gt2-...e-cheap-3.html

Born2Run

The connector is on the passenger side of the engine compartment. There is only one connector to unplug. Squeeze the small metal spring loaded bar and pull down. Easy as that. Hope the pictures help.

mikegee

thanks!!!!

TRAKCAR

I've ran it unplugged for 12K miles, no issue.
It is the same as runninng it with the sport button on over 4000RPM or so, no problem.

ttdan

you may want to put some electrical tape over the exposed plug & socket, keep the crud out.

fun2k

Just ran it with the stock exhaust unplugged,and boy the droning is bad. With the windows up it will probably make you deaf and with the windows down i felt sorry for the other drivers. The sound below 3000rpm unplugged is way different than what you hear above it,it sound like a supra exhaust times 10 + drone.

sharkster

For those that need to keep things "quiet" Mikymu has a nice write up on how/what
http://sharkwerks.com/porsche/techni...ification.html

Izzone

The drone is bad with a stock rear exhaust......but once you install a Sharkwerks exhaust there is no drone with it unplugged

On Pole

http://www.youtube.com/watch?v=J0Q5Szx021s

Born2Run

There is no droning with the SharkWerks bypass and the connector unplugged. If you can't live with the OEM exhaust and the drone, go with SharkWerks...you won't be disappointed!!