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YOUR RESEARCHOEM Sport Exhaust?
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Install complete system
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I installed the complete system with speed control, I think the flaps opened up at 35 mph (but added a bypass switch to override).
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Suggestion · Original poster
My mechanic recommended FabSpeed but I prefer to go OEM where I can.
Replace but sounds pretty good and no drone at all
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Suggestion
OEM mufflers modified by Fister- probably no performance change but sounds pretty good and no drone at all.
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Suggestion
Ultimate Porsche 996 aftermarket exhaust group test comparison!
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Suggestion
Most muffler shops use 1 1/2� or 2� non-stainless pipes which produce a different sound.
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Hey gang - has anyone upgraded their 996.1 (MY99 in particular) from stock to OEM sport exhaust? Having trouble finding videos online (save for one from PCA - see below). My mechanic recommended FabSpeed but I prefer to go OEM where I can. Looking mostly for the improved sound. Performance boost is a bonus as my sub-2900lb 3.4L Coupe has plenty of power for spirited daily driving.
Thanks in advance!
-Ryan
Link to PCA OEM sport exhaust upgrade video
sound of exhaust starting around 14:30 mark
An alternative to the sport exhaust is to either modify the installed stock mufflers or pick up a used pair of OEM mufflers. Have the Fister or Gundo mod done by a muffler shop. This is an easy and inexpensive modification. I had this done and to my 99 996 and the exhaust note is very close to the note in the attached video.
It is my understanding that the Fister/Gundo mod creates the same physical properties as the Sports exhaust. The difference is the exhaust is in sports mode all the time, no switching on/off.
The Gundo Mod can be heard at the 12:40 mark here
SOUND UP! Ultimate Porsche 996 aftermarket exhaust group test comparison! - Bing video
Some Fister exhaust drive-bys on my '99 C4 w/3.8, Agency Power headers and stock cats. OEM mufflers modified by Fister- probably no performance change but sounds pretty good and no drone at all. Kind of what the OP is looking for without the cost of OEM Sport Exhaust.
Vimeo
For reference, here's the same setup except with Agency Power mufflers. More sound and deeper, but also more drone.
Vimeo
No affiliations, just having fun.
Fister Motorsport modifies the stock exhaust for a very good sport muffler sound. Definitely the low cost/high value way to go. Also buy new hardware from Fister, they offer it economically.
If you go the Fister route, be sure to have a 1 3/4� diameter stainless cross pipe TIG welded. Most muffler shops use 1 1/2� or 2� non-stainless pipes which produce a different sound.
I added a Porsche sport exhaust to my then new 2003 996. I think I paid $1500 for the whole kit. I installed the complete system with speed control, I think the flaps opened up at 35 mph (but added a bypass switch to override). I also added a manual switch at the horseshoe.
I have the TSB with the instructions, if you need them.
This is a source reference. Confirm exact model applicability in the original material.
