O2 sensor size

karim · Post by **karim** » Mon Oct 17, 2005 7:38 am

AcingTeam wrote:
karim wrote:Porsche Cayen has 4 cats 2 in each side, but the last 2 cat they don't work, as they don't have sensors they are there for just to lower the sound, so there is aftermraket cat back for it and what gain it gives.

mmamdouh wrote:you scared me for a moment here man

MMamdouh
Those other 2 cats are called resinators (aka mufflers)

They are CAT
check http://www.fabspeed.com/cayenne.html

karim · Post by **karim** » Mon Oct 17, 2005 12:42 pm

Hi,

I took off my CAT today to empty it, had hard time to do that because of the design of the CAT, anywy after few hours we done it. Tried to install spark plug anti fouler but found out the hole in the CAT is bigger, so it has to be custom made, so i just installed it back again, and the results in the sound you feel something is strange, and it didn't turn my CEL on, as for power I still can't fell it., maybe later on when I take a long ride.
i will drive it for a while and will custom a pipe later on.

Audacity Racing · Post by **Audacity Racing** » Mon Oct 17, 2005 12:44 pm

the power will be much better in higher rpms

as for the strange feeling/sound, the engine computer (ecu) is probably not used to the extra flow yet and has not compensated.

i bet that after a good long drive you'll notice it more and will feel it better

a replacemtn pipe is always better than a gutted cat

karim · Post by **karim** » Mon Oct 17, 2005 12:55 pm

Audacityracing wrote:the power will be much better in higher rpms

I don't drive that high

as for the strange feeling/sound, the engine computer (ecu) is probably not used to the extra flow yet and has not compensated.

I guess so

i bet that after a good long drive you'll notice it more and will feel it better

a replacemtn pipe is always better than a gutted cat

Yes will do that later

AcingTeam · Post by **AcingTeam** » Tue Oct 18, 2005 2:23 pm

karim wrote:
AcingTeam wrote:
karim wrote:Porsche Cayen has 4 cats 2 in each side, but the last 2 cat they don't work, as they don't have sensors they are there for just to lower the sound, so there is aftermraket cat back for it and what gain it gives.

Those other 2 cats are called resinators (aka mufflers)

They are CAT
check http://www.fabspeed.com/cayenne.html

On that site I only saw 2, where did you see 4?

Audacity Racing · Post by **Audacity Racing** » Tue Oct 18, 2005 2:25 pm

AcingTeam wrote:
karim wrote:
AcingTeam wrote: Those other 2 cats are called resinators (aka mufflers)

They are CAT
check http://www.fabspeed.com/cayenne.html
On that site I only saw 2, where did you see 4?

cause it calls those secondary cats replacement pipes[/u]

karim · Post by **karim** » Sun Oct 23, 2005 11:01 am

Audacityracing wrote:
AcingTeam wrote:
karim wrote:

They are CAT
check http://www.fabspeed.com/cayenne.html
On that site I only saw 2, where did you see 4?

cause it calls those secondary cats replacement pipes[/u]

#

FACTOID: All Cayenne Twin Turbo, Cayenne "S" models and Volkswagen V8Touareg have 4 catalytic converters.
#

The 2nd set is only to make to car extremely quiet - unnecessarily quiet. Catalytic converters are great small easily placed mufflers.