Guess i'm getting old too as I wouldn't want it any louder. Stopped at a 7-11 with my wife the other day so she could get a cup of coffee. I waited in the car, with it running and NOT right outside the door. She came out laughing and said while in the store, with music playing she could hear my car idling.

 

That has always been the issue with exhaust. What is right for one is not another. It is very subjective.

 

Thanks, Stephen/Moogle. Is there a relationship between loudness and possible performance gains such as throttle response & turbo's faster spooling-up?

 

No, perfomance stays the same. The exhaust when changed makes the car spool faster, create more HP and TQ.

 

My wife says she can hear mine when I pull into the neighborhood. The Fabspeed is deceptively loud. I think it is louder than you think...

 

Yes, due to less backpressure from the exhaust system, the turbos will be able to spool faster, resulting in more power, earlier

 

you want loud , fabspeed bypass pipes with racing cats

 

The factory PSE (if and when available, that is) does NOT do any of this, right? It alters the sound by a different mechanism? Thanks.

 

Since the Factory PSE is unavailible on the turbo, it is irrelevant. However, on NA cars, indeed it uses a different method to alter sound.

The PSE opens a bypass valve that allows more free flow in the exhaust, on an NA car this may lower low end torque/hq but midrange/upper range power will increase slightly, since the PSE (without hacking it) only opens at higher RPMs, it effects the car in a positive manner.

Per porsche's official figures, PSE does not add power, although it should help slightly since it is dynamic. Not sure if anyone has dynoed broken in cars to compare.

 

Tom,

Thanks. There is rumor of PSE for turbo; but knowing what I know now, I would probably go after-market if/when the time comes. Exhaust mod is not an easy decision: Hard or near impossible to get real life "samples," let alone real time comparisons of competing systems. In addition, what's loud for one person might be whisper quiet for another!

IF performance gain alone is what I am looking for, NOT a louder sound, what system would you recommend please? I imagine Fabspeed Quiet would be on top of the list? TIA.

 

Milltek seems to be relatively quiet and makes power - some say the most power.

 

i drove both 997tt with awe and fabspeed quiet. i found awe to be much quieter than fs.

i believe treynor swapped out a fs quiet system for milltek as his wife found fs-quiet too loud.

 

Europipe made an excellent exhaust that was the defacto choice for the 996TT, I haven't been keeping up enough to know if they have a 997 one available, but that would be my first choice, their build quality is second to none, even better than Fabspeed's already amazing work.

 

Hi Henry, as you know I agree with your assessment. And yes, Ben did end up with milltek. I think the sound of the FS is just right but I may be removing it if it's what is causing the problems I've been having lately. Car was flat-bedded away today.

 

Any word Chris?