Couple interesting choices for turbo exhaust
#31
03-28-2011, 06:51 PM
Join Date: Oct 2006
Location: florida
Posts: 961
Rep Power: 59 
[quote=Mike/AWE;3161893]Great question.
Size, shape, and the internal baffeling of the resonators or mufflers. This is plays a huge part.
Also, how the system is mounted to the car. That can also play a role on how loud the system is inside the cabin.
Sound is vibration. Since we design and make our Porsche systems on site, we have the luxury of trying multiple prototypes. We can quickly play with and adjust certain variables to achieve a desired result. This is a huge advantage for us.
With other after market exhaust systems, they never mention this sound-vibration issue. I noticed in your installation procedure, a special adjustment is mentioned if vibration or resonance is felt. Most likely this is not the sound vibration you mention above, but is this exhaust-vibration AWE-issue present in other after market systems, but just not discussed?
Size, shape, and the internal baffeling of the resonators or mufflers. This is plays a huge part.
Also, how the system is mounted to the car. That can also play a role on how loud the system is inside the cabin.
Sound is vibration. Since we design and make our Porsche systems on site, we have the luxury of trying multiple prototypes. We can quickly play with and adjust certain variables to achieve a desired result. This is a huge advantage for us.
With other after market exhaust systems, they never mention this sound-vibration issue. I noticed in your installation procedure, a special adjustment is mentioned if vibration or resonance is felt. Most likely this is not the sound vibration you mention above, but is this exhaust-vibration AWE-issue present in other after market systems, but just not discussed?
#32
03-28-2011, 07:07 PM
Join Date: Oct 2006
Location: florida
Posts: 961
Rep Power: 59 I like the BBI pipe. Installed one on my 2010 TT - not loud at all actualy....until you wail on it...very civil with nice tone on idle. Uses the OEM cats which was important to me. Build quality was superb and it was reasonbly priced. The black quad tips are killer. Europipe and AWE interested me as well after all my reasearch because I liked their sound as well and they were very helpful in my inquiries - and the customers I spoke with were all very pleased with their exhausts. In the end - for me - the BBI tone was one that I like the most.
#34
03-28-2011, 07:37 PM
Join Date: Oct 2006
Location: florida
Posts: 961
Rep Power: 59 I like the BBI pipe. Installed one on my 2010 TT - not loud at all actualy....until you wail on it...very civil with nice tone on idle. Uses the OEM cats which was important to me. Build quality was superb and it was reasonbly priced. The black quad tips are killer. Europipe and AWE interested me as well after all my reasearch because I liked their sound as well and they were very helpful in my inquiries - and the customers I spoke with were all very pleased with their exhausts. In the end - for me - the BBI tone was one that I like the most.
#35
03-28-2011, 08:37 PM
Using your OEM cats, did they just weld the BBI pipes to the cats. Did they even bother to remove the cats?? If they can do that, then they can install another muffler, but I have been told they can't/will not do that, but always replace cats and muffler. Or did you have to buy another set of OEM cats??
#36
03-29-2011, 05:00 AM
Johnw, reading your posts it looks like you've done your homework. An audition is now the final piece in the puzzle, but for your criteria you know there are only two options. So throw a coin and let us know when you've got it on
. Either will be good.
. Either will be good.
#37
03-29-2011, 07:21 AM
Originally Posted by johnww
With other after market exhaust systems, they never mention this sound-vibration issue. I noticed in your installation procedure, a special adjustment is mentioned if vibration or resonance is felt. Most likely this is not the sound vibration you mention above, but is this exhaust-vibration AWE-issue present in other after market systems, but just not discussed?
If an exhaust is not installed correctly then it will undoubtedly will cause a resonance in the cabin which can equal a drone. For example, install the exhaust, but don't fully tighten any of the hardware. You will start the car and the exhaust will vibrate like crazy, right? It will sound awful. Now tighten things down and make sure the exhaust is mounted correctly. Those vibrations are gone and you have an exhaust that will sound as intended.
#38
03-29-2011, 08:12 AM
Registered User
Join Date: Aug 2004
Location: Long Island, NY
Age: 62
Posts: 6,379
Rep Power: 345 
Having had many of the systems mentioned, I would go with a system that has the least amout of clamped joints. Preferably none. No matter how good/big the clamp, they will all eventually loosen/drone on a turbo.
The old dual can tubi, (one peice off the cats) was a really nice system, too bad they went the multijoint/drone route.
Perhaps AWE could make you a solid/1 peice crossover system for the 997.1 with the RSR style tips....THAT would be a nice system!
Just my 47cents
The old dual can tubi, (one peice off the cats) was a really nice system, too bad they went the multijoint/drone route.
Perhaps AWE could make you a solid/1 peice crossover system for the 997.1 with the RSR style tips....THAT would be a nice system!
Just my 47cents
Last edited by TT Surgeon; 03-29-2011 at 08:14 AM.
#39
03-29-2011, 08:59 AM
I've had many exhaust systems on various cars (B&B, Corsa, Europipe, Magnaflow, never an AWE though) and install was never the source of drone - it was always the design of the system - some have more resonance than others just because of their internal design not the clamping hardware. Vibration from a bad install is fixable, drone from a bad system is not. I've experienced no drone with Europipe or with OEM PSE. BTW, drone is much more prevalent with automatic transmissions.
#40
03-29-2011, 03:33 PM
I picked the car up yesterday and went for a drive at highway speed intently listening for drone - or any other sound that was offensive - which pleased to report none was heard. I chose the "quiet unit" (which I can't remember if that was stage 1 or stage 3) but it sounds nice....though may be quiet for some. Will be able to transport my wife or business associates or talk on the cell phone without apologizing for noise - which is good. It is really very civil...
#41
03-29-2011, 03:35 PM
Skeeter is correct - I understand only the 997.2 can use the OEM cats - I like that....and by the way...the tips are killer...
#42
03-31-2011, 05:01 AM
Mash it down sounds like my old GT3....on the way up, sounds 'slightly custom'...which was what I was after.
#43
03-31-2011, 03:37 PM
Join Date: Oct 2006
Location: florida
Posts: 961
Rep Power: 59
Wonder if the 977.2 cats would fit the 997.1? That would be considerate of Porsche. this would sure make things simplier for warranty purposes.
#44
03-31-2011, 06:06 PM
Great question.
Size, shape, and the internal baffeling of the resonators or mufflers. This is plays a huge part.
Also, how the system is mounted to the car. That can also play a role on how loud the system is inside the cabin.
Sound is vibration. Since we design and make our Porsche systems on site, we have the luxury of trying multiple prototypes. We can quickly play with and adjust certain variables to achieve a desired result. This is a huge advantage for us.
Also, the flat six turbo motor in our opinion is not one that needs a switchable system, we also cannot justify the added expense. The Audi R8 V8 an V10 on the other hand respond well to a switch. That is why we incorporated one into those exhaust systems.
Thanks for asking.
Size, shape, and the internal baffeling of the resonators or mufflers. This is plays a huge part.
Also, how the system is mounted to the car. That can also play a role on how loud the system is inside the cabin.
Sound is vibration. Since we design and make our Porsche systems on site, we have the luxury of trying multiple prototypes. We can quickly play with and adjust certain variables to achieve a desired result. This is a huge advantage for us.
Also, the flat six turbo motor in our opinion is not one that needs a switchable system, we also cannot justify the added expense. The Audi R8 V8 an V10 on the other hand respond well to a switch. That is why we incorporated one into those exhaust systems.
Thanks for asking.
Mine works with an ECU opening the flaps when boost comes and its a treat. Tried the remote and did not like it and hence installed and on/off button in the car. The remote was just way too cumbersome imo and not user friendly at all.
#45
04-02-2011, 02:39 AM
Registered User
Join Date: Apr 2008
Location: New York, USA
Age: 54
Posts: 536
Rep Power: 54
The more seams and weld joints or stretched metals the greater the drone.
The more nuts and bolts loosened clamps the greater the drone and leaks.
The metal PROPERTIES (including alloy mixes) AND the exhaust CONSTRUCTION
AND proper INSTALLATION are all key to high performance systems.
Titanium- HEAT RESISTANCE
GREATER STRENGTH
CORROSION FREE
EXTREMELY LIGHT WEIGHT
It cost more because the metal is EXPENSIVE.
But if you want the BEST system able to drive around salty coastal areas year round, through mud ice and snow, winters and summers... BAR NONE... TITANIUM is what you get what you pay for.
The more nuts and bolts loosened clamps the greater the drone and leaks.
The metal PROPERTIES (including alloy mixes) AND the exhaust CONSTRUCTION
AND proper INSTALLATION are all key to high performance systems.
Titanium- HEAT RESISTANCE
GREATER STRENGTH
CORROSION FREE
EXTREMELY LIGHT WEIGHT
It cost more because the metal is EXPENSIVE.
But if you want the BEST system able to drive around salty coastal areas year round, through mud ice and snow, winters and summers... BAR NONE... TITANIUM is what you get what you pay for.