Cayenne 955/957 Porsche's SUV up to 2011. Cayenne, Cayenne S, and Cayenne Turbo message forum.

Secondary cat bypass installation tips?

Thread Tools
 
Search this Thread
 
Rate Thread
 
  #16  
Old 12-26-2008 | 04:09 PM
B Feelgood's Avatar
Registered User
Joined: Oct 2008
Posts: 65
From: Pittsburgh, PA
Rep Power: 19
B Feelgood is infamous around these parts
Removing the crossmember and letting the piping drop all the way down is an easy way to get to that top bolt.
 
  #17  
Old 12-26-2008 | 05:21 PM
the head's Avatar
Registered User
Joined: Oct 2008
Posts: 364
From: Houston, TX
Rep Power: 34
the head is a jewel in the roughthe head is a jewel in the roughthe head is a jewel in the roughthe head is a jewel in the rough
Originally Posted by Reborn996
Okay Head, but how does it sound?! I am looking into getting these for my 04 CTT and wondered if it was good enough without doing the mufflers.
Pretty close or just like stock at idle and just driving around as far as I can tell. I had a car full of kids earlier so I didn't get the chance to air it out.
 
  #18  
Old 12-26-2008 | 05:27 PM
the head's Avatar
Registered User
Joined: Oct 2008
Posts: 364
From: Houston, TX
Rep Power: 34
the head is a jewel in the roughthe head is a jewel in the roughthe head is a jewel in the roughthe head is a jewel in the rough
Originally Posted by B Feelgood
Removing the crossmember and letting the piping drop all the way down is an easy way to get to that top bolt.
I had thought about that but my jack doesn't go that high and I wasn't sure if that much wood stacked up would be a good thing.
 
  #19  
Old 12-26-2008 | 10:20 PM
Reborn996's Avatar
Registered User
Joined: Jan 2007
Posts: 785
From: NorCal
Rep Power: 56
Reborn996 is a splendid one to beholdReborn996 is a splendid one to beholdReborn996 is a splendid one to beholdReborn996 is a splendid one to beholdReborn996 is a splendid one to beholdReborn996 is a splendid one to beholdReborn996 is a splendid one to behold
Sounds like you need to drop off the kids and take that thing for a real drive!
 
  #20  
Old 12-28-2008 | 03:55 PM
the head's Avatar
Registered User
Joined: Oct 2008
Posts: 364
From: Houston, TX
Rep Power: 34
the head is a jewel in the roughthe head is a jewel in the roughthe head is a jewel in the roughthe head is a jewel in the rough
Not much of a difference anywhere as far as sound or power. But I wouldn't expect to really feel 10-20hp in a 5600 pound vehicle, either. If it's any louder I'm not sure I can tell. The dragstrip will tell me what it's doing in January.
 
  #21  
Old 12-28-2008 | 04:40 PM
have2modit's Avatar
Banned
Joined: Dec 2008
Posts: 24
From: Syosset,NY
Rep Power: 0
have2modit is infamous around these parts
Just installed fabspeed cat bypass on my 05 ctt a week a go and i am loving it. got rid of the lag and now it really comes on strong around 3k rpm. more throaty exhaust , inside and out. and especially on cold start and when you rev it up. i can feel the power increase in the midrange. going to take a video soon
 
  #22  
Old 12-28-2008 | 08:55 PM
Cpa4S's Avatar
Registered User
Joined: Mar 2005
Posts: 1,827
From: Ontario
Rep Power: 100
Cpa4S is a splendid one to beholdCpa4S is a splendid one to beholdCpa4S is a splendid one to beholdCpa4S is a splendid one to beholdCpa4S is a splendid one to beholdCpa4S is a splendid one to beholdCpa4S is a splendid one to behold
there are some other great threads on the sound of the by pass pipes. no one disliked them if i remember correctly.

i am going to do it next year when it warms up? although i do have a service in 1,200 km coming up som maybe i will bug Fabspeed sooner?
 
  #23  
Old 04-09-2012 | 04:17 PM
garukun's Avatar
Registered User
Joined: Jan 2012
Posts: 64
From: Bellevue, WA
Rep Power: 15
garukun is infamous around these parts
I had to revive this thread since the original poster seems to from the NWA region. I'm curious how the installation ended up going? Did you guys find a shop here in Eastside/Seattle that does it for you? How much did it cost you?

I definitely want to install this thing myself as a fun experience, but it's sounding like something I need more courage/time and skill.

Also, how would removing that cross member help, it does not change the positioning of the pipes does it?
 
  #24  
Old 04-09-2012 | 05:43 PM
crowland's Avatar
Registered User
Joined: Jan 2011
Posts: 43
From: Dallas
Rep Power: 15
crowland is infamous around these parts
No special skills needed, just a little patience- I was trying to dig up my instructions for install but cant seem to find them. You drop that cross member so that you can loosen the rear clamps and then drop the pipes down, then you just loosen the 3 bolts at the primary cats -which is the most time consuming frustrating part of the job. A set of rotating wrenches will come I handy for this- be forewarned though it is a HUGE pain to remove these bolts, especially the top one. My suggestion is to use some penetrating oil and spray the 3 bolts for a few days and let it soak as it might help loosening them.

Only tools needed are a floor jack(I used a scissor jack out of another vehicle) a couple of wrenches and a little patience. I ordered mine from Leistung Motorsports and they actually include the U-joint wrench you need to get at the top bolt that I and other have mentioned.

I will say I could probably do the job 50 percent faster after you've done it once.
 
  #25  
Old 04-10-2012 | 09:35 AM
03EvoIII's Avatar
Registered User
Joined: Sep 2011
Posts: 1,266
From: Colorado
Rep Power: 93
03EvoIII has a reputation beyond repute03EvoIII has a reputation beyond repute03EvoIII has a reputation beyond repute03EvoIII has a reputation beyond repute03EvoIII has a reputation beyond repute03EvoIII has a reputation beyond repute03EvoIII has a reputation beyond repute03EvoIII has a reputation beyond repute03EvoIII has a reputation beyond repute03EvoIII has a reputation beyond repute03EvoIII has a reputation beyond repute
installing the secondary cat-delete pipes is super easy...
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Mini George
Automotive Parts & Accessories For Sale/Wanted
5
01-18-2016 09:16 PM
ct-andy
Cayenne 958
3
08-21-2015 02:08 PM
vividracing
Boxster / Cayman
0
08-20-2015 12:17 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Secondary cat bypass installation tips?



All times are GMT -6. The time now is 11:24 AM.