pretty damn funny videos with you running around turning on/off the video!
View Poll Results: What do you think I should do?
Keep it how it is because it sounds sick!!!!
4
28.57%
Put the stock CATs back on because your losing torque.
3
21.43%
Get racing CATs and put those on.
6
42.86%
Do something else like a X or H pipe
1
7.14%
Voters: 14. You may not vote on this poll
Secobary CATs Removed Pics and Videos - I Need Opinions
Thread Starter
Super Member
Joined: Nov 2004
Posts: 570
Likes: 0
From: Los Angeles, CA
2006 BMW X5 4.8is and 2005 C55 AMG
Secobary CATs Removed Pics and Videos - I Need Opinions
Ok so basically I want to get everyones opinion on what they think. Should I keep the car like this? Should I put the stock secondary CATs back on? Should I get racing CATs to put in its place like the evosport ones? Should I do something else like get a X or H pipe or some pipes that have more of a bend to them? As for if I feel any torque loss from this I can't say because I had this done with several other mods, so the car now feels so much faster then stock, but if I'm losing anything I'm open to do something else.
*The video links are at the bottom*
Here are the stock secondary CATs they are wrap in plastic and I didn't feel like unwrapping them.
Next are several pictures of where the CATs were and the pipes that replaced them.
These videos are basically more or less sound clips. The first one is of what the car sounds like when its been sitting for more then a day and I start it up.
http://www.youtube.com/watch?v=DrPkO5-bNvg
This next one is of the car warmed up in idle.
http://www.youtube.com/watch?v=YqDFEOQy4ho
This one is of a warm start.
http://www.youtube.com/watch?v=FO1r_j8pA94
This is of me revving the car to between 3K to 4K rpms.
http://www.youtube.com/watch?v=jnWLdd46Wlc
Another one of me doing the same.
http://www.youtube.com/watch?v=I85SX4CRAPI
Okay so that's it give me your thoughts good or bad I want to hear them.
*The video links are at the bottom*
Here are the stock secondary CATs they are wrap in plastic and I didn't feel like unwrapping them.
Next are several pictures of where the CATs were and the pipes that replaced them.
These videos are basically more or less sound clips. The first one is of what the car sounds like when its been sitting for more then a day and I start it up.
http://www.youtube.com/watch?v=DrPkO5-bNvg
This next one is of the car warmed up in idle.
http://www.youtube.com/watch?v=YqDFEOQy4ho
This one is of a warm start.
http://www.youtube.com/watch?v=FO1r_j8pA94
This is of me revving the car to between 3K to 4K rpms.
http://www.youtube.com/watch?v=jnWLdd46Wlc
Another one of me doing the same.
http://www.youtube.com/watch?v=I85SX4CRAPI
Okay so that's it give me your thoughts good or bad I want to hear them.
Senior Member
Joined: Dec 2004
Posts: 394
Likes: 0
From: UK
Obsidian E55
Will your car pass its next emissions test ??? I highly doubt it.
Have you also done the resonator delete ?? Ifso your in trouble with your next "smog" test if thats what you call it over there.
Nice sound though.
Have you also done the resonator delete ?? Ifso your in trouble with your next "smog" test if thats what you call it over there.
Nice sound though.
Thread Starter
Super Member
Joined: Nov 2004
Posts: 570
Likes: 0
From: Los Angeles, CA
2006 BMW X5 4.8is and 2005 C55 AMG
From what I've been told there is no change in the emissions of the car with this stuff removed.
Only removing the primary CATs affect that.
MBWorld Fanatic!
Joined: Jun 2005
Posts: 2,441
Likes: 0
..
It sounds pretty good! 
If at all possible would you mind doing a couple clips of you taking off WOT and just normal driving especially on the freeway. I want to hear whether it drones or not at highway speeds. THANKS!
If at all possible would you mind doing a couple clips of you taking off WOT and just normal driving especially on the freeway. I want to hear whether it drones or not at highway speeds. THANKS!
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Super Member
Joined: Oct 2005
Posts: 825
Likes: 3
2002 c32
I don't like it. I'm not flaming, it's something I would try myself, but compared to how a good sized V8 should sound, I just think it's bad and a raspy. Just not my thing is all. The work looks high-quality in any case.
Thread Starter
Super Member
Joined: Nov 2004
Posts: 570
Likes: 0
From: Los Angeles, CA
2006 BMW X5 4.8is and 2005 C55 AMG
I was actually planning on doing some of that this weekend. I'll post it up probably on Sunday or Monday.
MBWorld Fanatic!
Joined: Feb 2005
Posts: 1,193
Likes: 0
From: Bay Area SF
Silver 2002 C32, Silver 2006 CLK 350
well if your in California you wont pass smog. because of the extensive testing that the state mandates the smog shops over here. " you get fined, loose your licence, and even jail time if the tech cheats your smog test." so it not worth for them to cheat unless you know some one that will risk thier neck for you.
MBWorld Fanatic!
Joined: Oct 2002
Posts: 1,598
Likes: 0
I think the real relevant question is how annoying is the drone or sound in the car on the freeway. I remember back when i was a kid, this guy had an auto civic with simular mods and it gave me a headache on the feeway!!
MBWorld Fanatic!
Joined: Jun 2005
Posts: 2,441
Likes: 0
..
Thanks for taking the time to do the video clips Raw.
MBWorld Fanatic!
Joined: Jun 2006
Posts: 1,934
Likes: 1
From: Chicago
04 C32
well if your in California you wont pass smog. because of the extensive testing that the state mandates the smog shops over here. " you get fined, loose your licence, and even jail time if the tech cheats your smog test." so it not worth for them to cheat unless you know some one that will risk thier neck for you.
MBWorld Fanatic!
Joined: Jun 2006
Posts: 1,934
Likes: 1
From: Chicago
04 C32
I'm not sure how it is on a C55, but on my C32, there is 0 drone during highway crusing with the rear cats and resonator removed. The car sounds stock (silent).
Thread Starter
Super Member
Joined: Nov 2004
Posts: 570
Likes: 0
From: Los Angeles, CA
2006 BMW X5 4.8is and 2005 C55 AMG
All right I did some some driving videos of the car this weekend. Check them out and let me know what you think of the sound. One thing though the car does sound louder in these clips. Also in all these vids the car was driven in auto S mode.
This one is the car cruising on the freeway.
http://www.youtube.com/watch?v=M65O9uZ1OZw
Here is another freeway cruise, but I'm going a little easier on the throttle.
http://www.youtube.com/watch?v=iOysRg-_7Vo
This one is just a low speed cruise through a neighborhood.
http://www.youtube.com/watch?v=XpdI04v3gFQ
This one is just more of the same.
http://www.youtube.com/watch?v=6YkNPQy2ZO8
And last but not least is a WOT. Well, almost I didn't push the throttle in that fast and I didn't take it to kick down.
http://www.youtube.com/watch?v=_AQX4-Mthig
This one is the car cruising on the freeway.
http://www.youtube.com/watch?v=M65O9uZ1OZw
Here is another freeway cruise, but I'm going a little easier on the throttle.
http://www.youtube.com/watch?v=iOysRg-_7Vo
This one is just a low speed cruise through a neighborhood.
http://www.youtube.com/watch?v=XpdI04v3gFQ
This one is just more of the same.
http://www.youtube.com/watch?v=6YkNPQy2ZO8
And last but not least is a WOT. Well, almost I didn't push the throttle in that fast and I didn't take it to kick down.
http://www.youtube.com/watch?v=_AQX4-Mthig
MBWorld Fanatic!
Joined: Jun 2006
Posts: 1,934
Likes: 1
From: Chicago
04 C32
Thread Starter
Super Member
Joined: Nov 2004
Posts: 570
Likes: 0
From: Los Angeles, CA
2006 BMW X5 4.8is and 2005 C55 AMG
Well, I can't say since this was done at the same time along with several other mods. My car feels a lot faster then stock and the g-tech I have comfirms it. I'm getting a LSD installed next week which should help out things a lot!
MBWorld Fanatic!
Joined: Jun 2006
Posts: 1,934
Likes: 1
From: Chicago
04 C32
You'll love the LSD. Now I don't see how I drove without it
Out Of Control!
Joined: Nov 2001
Posts: 21,014
Likes: 2
From: CA, NV, CO
Joe! Just get a set of Random Tech Racing cats. That's what i have on mine, also no res and just straight pipes. Sounds sick!
The vid of the fwy cruise was nice. Didn't even bother to watch the low speed neighborhood cruise.
The vid of the fwy cruise was nice. Didn't even bother to watch the low speed neighborhood cruise.
MBWorld Fanatic!
Joined: Jun 2006
Posts: 1,934
Likes: 1
From: Chicago
04 C32
MBWorld Fanatic!
Joined: Jun 2006
Posts: 1,934
Likes: 1
From: Chicago
04 C32
I don't see the point in high flow cats. They won't give you any more power. Straigh pipe will outflow a high flow, and even that didn't do anything. The only reason I would consider a high flow cat is for tone tuning.
