Anybody interested in 2ndary bypass pipes for v8 platform??
#23
Yeah the cayenne has 4 cats so this just removes the back two. They will provide a more aggressive sound and should provide less backpressive which should benefit the turbos a good amount. According to the website, Fabspeed, who have dynoed before and after you will see a 27 hp and 22 lb/tq increase. As for visual effect really shouldn't have any as they are tucked up next to the transmission. Im not sure if they will be able to tell its been modified from the visual, but from what every one says they still pass emissions. I just know the cayenne is extremely quite and this is a way to open it up a little without going full exhaust, check out some videos on youtube if you want to know the sound difference
#26
I can't say for sure seeing as thats something i don't have to worry about , but i have heard people say that if you can get your dealer to install it the will honor your warranty. I would check just to be on the safe side. Im sure someone with experience in that area will chime in.
#27
i heard it only voids the warranty on the part that you replaced and thats all. but i would defintly check around with your local p-car dealer to make sure. most dealers really do not worry about bolt-ons (air intake, exhaust, etc) they usally will let you "slide". plus if you do run into some type of trouble, you can easily remount the stock cats and bring it to a dealer and they wont know the difference
Last edited by christx997; 03-18-2009 at 09:12 AM.
#29
For any still asking if they should do this mod; just take this test:
1. Do you like a mild sounding vehicle when you are highway cruising with your significant other?
2. Do you like mods with very noticeable performance increases for less than $1K?
3. Do you like performance mods that look factory?
4. Lastly, Do you like the sound of small Indy cars flying out your tailpipe when you smash the gas?
I did my pipes 2 months ago - I can cruise through town with nary a look. However, drop it down a gear and give it the goose, and look out momma. I think most folks have no idea what's making all that sweet music. IF you're on the fence, then for god sakes just trust this happy camper and spend your lunch money on this one.
1. Do you like a mild sounding vehicle when you are highway cruising with your significant other?
2. Do you like mods with very noticeable performance increases for less than $1K?
3. Do you like performance mods that look factory?
4. Lastly, Do you like the sound of small Indy cars flying out your tailpipe when you smash the gas?
I did my pipes 2 months ago - I can cruise through town with nary a look. However, drop it down a gear and give it the goose, and look out momma. I think most folks have no idea what's making all that sweet music. IF you're on the fence, then for god sakes just trust this happy camper and spend your lunch money on this one.