Please help me identify the exhaust on my 2005 CTT ?

[DOMANI]

When I bought my 2005 CTT it had this Gemballa exhaust on it. There was a constant rattle at around 3k RPM, so part of the deal was that it would be swapped for a OEM Turbo exhaust. When the Gemballa came of, my mechanic said it didn't really fit (reason for the rattle maybe?) and he had to do some repair to fit the OEM exhaust + pipes etc. in order to get it 'back right'.

Having lived with the car for a month, I really miss the low RPM sound I had on my Cayenne V6 - where I didn't have to push it in order to listen and enjoy the sound. Therefore I am considering getting it back on - since I recall it being a bit louder / deeper ?!

Can anyone tell me what kind of exhaust this is - does it even fit a CTT. When you knock on it, it feels totally 'empty' - like nothings in there. Is this right?

Thanks in advance!

[ciaka]

Is the first and second pic of same exhaust? If yes then gemballa exhaust is what you have. The top pic looks like Leistung exhaust, the sr1.

[DOMANI]

Is the first and second pic of same exhaust? If yes then gemballa exhaust is what you have. The top pic looks like Leistung exhaust, the sr1.

It's the same. But I am wondering if it's normal that it seems totally 'empty' inside?

[clarksongli]

i would say yes it would be normal.

Most performance exhaust systems simply use a straight through perforated pipe, with fiberglass packed around the pipe. This is both the least restrictive and most effective way to deaden sound and improve performance.

[ciaka]

if the exhaust is loud then one of the reasons is that the sound absorbing material is not present, allowing free exhaust output and increased noise. You can go to 6speed and check out some pics of my SR1 exhaust before I put it up (may be pics on here too). Search for my name or leistung sr1.