RUFBTR

Hi Guys-

I have seen many options for exhaust systems posted here and roadfly but I have not seen anyone post any dyno results.

I want more sound out of my Turbo but not if it results in less power.

There are a few different options:

1) aftermarket replacement for rear muffler

2) cat back systems with aftermarket replacement muffler

3) cat back with no rear muffler (straight pipes)

4) removal of secondary cats AND rear muffler (straight pipes)

5) removal of secondary cats and replacing rear muffler with aftermarket mufflers

I found these pics on line of a fairly decent looking mod:
http://community.webshots.com/album/90671822hcMWEZ

Does anyone have any insight here? Who is the best MFR to go with? Fabspeed, Rinspeed, Hammaan, Remus, Techart, Gemballa , Cargraphic, generic muffler shop?

Best Regards-
******************************
04 Cayenne Turbo
93 RUF BTR2 3.8 (RUF VIN)

mudman2

I have the Fabspeed Cat Bypass pipes but have not gotten to a dyno yet, it feels a lot faster tho' and I like the sound.

Joe@Fabspeed

The 2ndary catbypass pipes (bolt-on replacement pipes for the 2nd set of catalytic converters) will without doubt add considerable power, throttle response, and sportscar sound to all Cayenne automobiles. The big V8 likes to breathe and exhales better with the catbypass pipes. You can actually feel the car wakes up........which translates into a 10-20HP gain as a Rule of Thumb.

There should be DYNO results soon a Cayenne Twin Turbo. The TT was baselined stock, GIAC chipped, and then Fabspeed added 2ndary catbypass pipes and a complete rear freeflow exhaust. The 955TT is crazy fast and power is OVER 520 easily. I eastimate it is in the 550HP range. The owner is teaching certain Corvettes, Camaro, Mustnag 5.0s and other cars a valuable lesson on ROUTE 202 and other roads in Philadelphia.
Have a great day
Joe

sporters78

So joe when will the catbypass pipes be for sale?

rockitman

Still happy with the cat bypasses Mudman???
I was looking at the muffler bypasses for the GT3...Real LOUD from what I understand....

Still holding out on the Cayenne till spring...

mudman2

Yes, the sound is very big V8.

Jeff said his sounded mustangy, mine is more camaro on steroids