Exhaust looks great the sound must be amazing. Hey is Sean done with the 997 Turbo yet??????

 

It does, thanks! And I think that the Turbo was up and running this PM

 

I am so happy i have a list for Sean to do on my car lol. I cant wait to hear your exhaust i bet you get some gains from the new exhaust?

 

I may be wrong here, but it is not way different from the PSE except that the PSE has some kind of a 'first stage' muffler. When the valves are closed, the exhaust gases are forced to go through the side mufflers and then the exterior tips. When the valves are open, the exhaust gases will mostly flow through the 'x-pipe' connected to the center tips (path of lower resistance) but the side muffler pipes are still opened too.



The AWE exhaust follows roughly the same principle except that the exhaust gases can flow out without going through any kind of muffler/resonator and that there are less components (arranged in a different order) hence the lower weight too.



The thing that surprises me a bit is that the AWE design is not way different from the FVD exhaust I had before but that was too loud for me (whether it was is quiet our LOUD mode). This AWE exhaust achieves a better balance for how I use my car -quiet neighborhood / loud at the track / still not too loud to get a ticket from the local LEO's -

I hope i got it right. If not, it seems to work anyhow

 

One thing I noticed - the AWE exhaust uses much smaller pipes after the valves. Maybe that is enough to keep the noise down. Oh well, I'm pretty happy with my cargraphic, but the tips from AWE look great.

 

AWE claims very reasonable power/torque improvements in the mid range so I have a tendency to believe them. I'll have plenty of opportunities to push the car over the next 3 days to check if my butt dyno confirms this.



PS: Dibs on Sean BTW, still a lot of work to do on the E46 . The car is already there

 

Just ordered an external microphone with wind protection for my GoPro to record sound clips. I hope I'll get it before the week end...

 

I knew there would be more hp with that exhaust. It looks like they did a great job when they made it. Yeah Sean just has some smalls things to do like oil change, small air leak in the back and axle rubber boot lol. Brake upgraded is coming.

 

I found this video of some new Techart "Valve Control Racing Exhaust" and it sounds the best to me. I cannot find the part on the web but it is awesome.
Here is another one for a C4S, crappy video but awesome sound.

 

Wow if you don't mind loud that sounds awesome.

 

Is there some Techart vendor guy in the forum that can talk about this product? Wow, I'd love to hear it in person.

 

Thanks for all the detailed information and photos. I'm placing my order for this system today.

 

Here is the information from their site with some audio sounds.
http://www.techart.de/en/techart-sho...-i/sounds.html

And here's a quick video I did of mine. It sounds better than in the video but I couldn't really go all out due to my neighbors being outside that day.

 

Serge I'm surprised you didn't feel an immediate difference, or did you?

 

When I posted the first feedback the night I picked up the car, I had not had the opportunity to push the car hard.
I have done 600 miles with it over the last two days on highways and mountain roads and have been able to open up a few times

You can indeed feel a difference when you step on it and pass 3,000 rpm. The acceleration feels more linear and stronger which is consistent with the dyno data provided by AWE. I did not get the exhaust with a performance increase in mind, but it is a nice bonus on top of the sound and weight.

I'll be honest and confess that it made me feel like going further and look at the GIAC tune
I am the first one to say that the 991 has enough hp to go fast, but this kind of thing is irrational by nature.