Welcome to RennTech.org Community, Guest
There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.
Here are some of the features available - once you register at RennTech.org
- View Classified Ads
- DIY Tutorials
- Porsche TSB Listings (limited)
- VIN Decoder
- Special Offers
OBD II P-Codes
- Paint Codes
- Videos System
- View Reviews
- and get rid of this welcome message
It takes just a few minutes to register, and it's FREE
Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)
- No ads - advertisements are removed
- Access the Contributors Only Forum
- Contributing Members Only Downloads
- Send attachments with PMs
- All image/file storage limits are substantially increased for all Contributing Members
- Option Codes Lookup
- VIN Option Lookups (limited)
Im waiting on a call back form the cat manufacturer. Just suck because my indy quoted 850 for labor just to remove and install. Any recs on cats that don't cat 3k? The one from muffler express.com may just be bad or melted due to a richer tune. I don't mind having a cat del but the exhaust fumes are too much in my opnion. Thanks for all your help. The cats that were purchased. 518 for parts 850 for labor. Porsche Cayenne TURBO 2004-2007 Bank 1 Catalytic Converter 4.5L V8 Rig – Muffler Express Ltd. MUFFLEREXPRESS.COM Porsche Cayenne Turbo Catalytic Converter Item fits all TURBO models with 4.5L V8 non-turbo engine from 2004 through to 2007 for front right.
It is exactly what's in the video below. Im now having the cats removed to see if maybe they were DOA? I got them from mufflerexpress.com. I found out after I ordered the different warranty you get the better quality they are. I got the 90 day warranty which is the lowest. Could one be bad? Sound is coming from passenger side when driving. I bought the 955 with an unknown tune on the ECU, too. There is also an unknown switch on the dash that does not seem to do anything. Also a Sprint Booster is installed. Was thinking about getting it flashed back to OEM, but my local indy says not to. Exact RPM and sound. https://www.youtube.com/watch?v=uzn7cu4zkH8
I have checked belts. Im starting to think it was a doa cat. The VB was just replaced. Air suspension, tranny service...everything. As soon as cats where on then it made the sound. The original cats were hollowed out. Rsn great, minus the fumes. No codes.
I have an 04 TT with around 107k miles. Extensive list of repairs. After having new cats put on, I hear a loud whining/screeching sound when under load at about 3k - 3500 rpm. Noise will not duplicate in Park or on lift. Im not getting any Turbo faults, which was my first thought. Im stumped. Sound is almost similar from this video about 2 min in. But I would assume if it was TB it would make the noise in Park or on lift.