: more aggressive sound



todd2fst4u
09-25-06, 12:29 AM
im trying to get my catera to have more of an aggressive sound to it. i want it to sound a little more muscular. my first idea was to remove the resonators and replace them with just pipes to the stock muffler. i've read a bunch of people have done this. do you have a sound clip of this maybe? has anyone tried to remove the muffler or remove the muffler and resonator? any help is apprecaited.
here are 2 sound clips from my car now. the only mod done to it is a k&n stock replacement air filter.

from the engine:
YouTube - 1998 Cadillac Catera Engine Sound (http://www.youtube.com/watch?v=kCyzL3JR8G8)
from the exhaust:
YouTube - 1998 Cadillac Catera Exhaust Sound (http://www.youtube.com/watch?v=02fI97Mr3cY)

R-Caddy
09-25-06, 07:05 PM
I have dropped the whole exhaust except cats. Then I put the middle section back on without the last muffler. That's the way I have it right now

todd2fst4u
09-25-06, 07:20 PM
do you have a sound clip of that?

AllenPacla
09-26-06, 02:24 AM
I suggest that you go and remove the resonators first and if it's still not good enough then drop in a K&N filter, if you are still not happy, go for the muffler upgrade. I personally just removed the resonators and was happy about it. I even had to put back the OEM air filter because with the K&N, the sound is a little on the too much side for me. Hope this helps.

sportyal
09-27-06, 06:55 PM
your set up sounds like the way to go, that is basically what I intend to do, one question did you, when you had the resonator removed, do the x pipe or the h pipe modification ? that's what I'm contemplating on, I heard good reports on both mods but just can't weigh one from the other, just want to make sure when I do, it's the right choice.

Warez
09-27-06, 09:20 PM
I suggest that you go and remove the resonators first and if it's still not good enough then drop in a K&N filter, if you are still not happy, go for the muffler upgrade. I personally just removed the resonators and was happy about it. I even had to put back the OEM air filter because with the K&N, the sound is a little on the too much side for me. Hope this helps.

Can you post a sound clip? Did you notice any power increase?

AllenPacla
09-30-06, 05:39 AM
I don't think recording the sound of my exhaust now and posting them online would be an accurate representation. It's better that you give it a try, you don't even have to go to a shop if you like. You can just plain saw the resonators off and then clamp one of those rubber hoses in between the two pipes that leads to the muffler. If your happy with the sound, then go ahead and have a steel or a stainless pipe welded on, in place of the resonators. This way, you will save some money on the job in case you don't like the end result. If you're not happy with it, then just bring the cut off resonators to a shop and have them welded back on. In terms of performance, I notice it more during high rpm accelerations. Remember, the butterfly of the intake of our car opens fully only at high rpms ( i can't remember the exact figure).

'01CateraSport
09-30-06, 11:06 AM
It's at 4000 rpms.

Resilient
10-02-06, 12:37 PM
I personally just removed the resonators and was happy about it.When you do that, do you just replace with some additional piping? Bolt on or welded on?

todd2fst4u
10-03-06, 09:39 PM
i got the resonators removed today.
before:
http://todd.bluesubmarine.org/Cadillac/DSCN2053.jpg
after:
http://todd.bluesubmarine.org/Cadillac/DSCN2368.jpg

the car sounds great. has a nice sound at low rpms now. i would definitally reccomend getting it done if you are looking for a more muscular sounding car.
here are the sound clips with the resonators removed.
from the engine:
YouTube - 1998 Cadillac Catera Engine Sound (http://www.youtube.com/watch?v=YQ2YbPHlnXo)
from the exhaust:
YouTube - 1998 Cadillac Catera Exhaust Sound (http://www.youtube.com/watch?v=p-9usdCs2D)
the videos dont really do it justice. it sounds better in person. the videos are just to compare with how it differs from being stock.

'01CateraSport
10-04-06, 11:02 AM
Where did you have your resonators removed? How much did it cost?

Warez
10-04-06, 11:43 AM
the car sounds great. has a nice sound at low rpms now. i would definitally reccomend getting it done if you are looking for a more muscular sounding car.

Is it louder accross the RPM range and do you notice any drone at highway speeds?

Resilient
10-04-06, 02:36 PM
Thanks for the pictures... definitely something I am considering.

todd2fst4u
10-04-06, 06:50 PM
Where did you have your resonators removed? How much did it cost?
a local muffler shop around where i live. it was called classic mufflers. the guy charged me $35 per side ($70 total) and let me keep the resonators. he said he would reinstall them for $25 each($50 total) later if i wanted them put back on.


Is it louder accross the RPM range and do you notice any drone at highway speeds?
from what i can tell at about 3500 rpms and below it makes a nice deep tone. seems to sound the same at higher rpms. as for drone :confused: i dont know. nothing out of ordinary.


Thanks for the pictures... definitely something I am considering.
if you are even remotly considering it, i would definitally say go for it.

'01CateraSport
10-05-06, 01:15 PM
Did you notice any power gains or just better sound? Did that guy take the resonators off and put those pipes on for $70? Or just strictly the resonators off? I went to Car-X and they quoted me about $250 to take the resonators off.

todd2fst4u
10-05-06, 08:14 PM
$70 for resonator removal and he put on the pipes in their place. $250 is too much. go to yellowbook.com and search for exhaust or muffler in your area. im sure there is a slight performance gain. its hard to tell. nothing drastic.

newbee
10-16-06, 04:14 PM
What about glass packs? Cool or am I crazy?:o

zealious
10-17-06, 09:17 PM
Hmmm.. I like the way it sounds... I have spare tube like muflers from an old car.. im going to try 2 ways.
Ill try it with Just a straight pipe in place of resonators..
and then ill try it with muflers in place of resonators.
I dont want the muscular sound.. Im looking for a sporty sound. nothing too low, high or loud..

zealious
10-17-06, 09:20 PM
Wouldnt an h pipe mess up the design of the exauhst pulses? In theory it would def relief a little pressure from the system.. an x would probly eliminate a lot of pressure.. but if the pressure relief causes the flow of pulses to get out of whack... ur talking about loosing a some performance and building back pressure..
Im curious to know from people who have tried it.

R-Caddy
10-18-06, 09:02 PM
I still want to do dual side exhaust... Hopefully, by the end of this year, because there's a few more things before that on the list... ;]

todd2fst4u
10-19-06, 01:28 AM
dual exhaust would be difficult with the gas tank in the way. you could cut off one of the current tips and get some pipes bent so it has a pipe on the gas tank side though.

netager
10-24-06, 10:32 PM
Search German or other European websites for dual exhaust for Opel Omega MV6 or just Omega 3.0 - it will give you an idea how it should look. I'm done with mods this year - getting too cold to work on the car. Maybe will finish custom front grill. Remus exhaust is on the least if it will fit alright. I'll get Remus or stay with stock - nothing sounds like Remus... ;)

todd2fst4u
10-31-06, 02:11 AM
im going to try to get to the muffler shop sometime this week if i can. im going to get the resonators re-installed and instead remove the muffler. i kind of want to hear how that sounds.

PEETYZ
10-31-06, 02:54 PM
Im very curious on the best way to make the car sound better through the exhaust system what would you reccomend? I highly recommend a cold air cone intake in place of the factory air box the car is quiet under mild excelleration but quick acceleration and high revs sounds awsome i wish i could post a sound clip but cannot at the moment but best of all it will only set you back about 30 bucks:) :stirpot:

PEETYZ
10-31-06, 02:59 PM
Here are a few pics of the car and airfilter!

R-Caddy
11-02-06, 10:52 PM
that filter definitely creates better sound. my friends go crazy about it ;)

todd2fst4u
11-04-06, 04:03 AM
here are some sound clips taken from outside the car. this is without resonators and with a k&n replacement filter.
http://www.youtube.com/watch?v=dISyvhvPyeI
http://www.youtube.com/watch?v=_Dbb7tcqBEk

PEETYZ
11-04-06, 12:16 PM
Sounds good! How about any performance gain or mpg gain? and can it be quiet when slowly accelerating or at a steady speed?

nerdifiedgeek
11-04-06, 08:13 PM
Is there a difference between these 2 intakes?


http://cgi.ebay.com/ebaymotors/K-N-FT-97-98-99-00-01-Cadillac-Catera-3-0L-Air-Intake_W0QQitemZ140046196313QQihZ004QQcategoryZ386 34QQssPageNameZWDVWQQrdZ1QQcmdZViewItem


http://cgi.ebay.com/ebaymotors/97-98-99-00-01-Cadillac-Catera-3-0L-V6-Air-Intake-W-CF_W0QQitemZ140048003406QQihZ004QQcategoryZ38634QQ ssPageNameZWDVWQQrdZ1QQcmdZViewItem

todd2fst4u
11-05-06, 03:37 AM
one has a genuine k&n filter(good), the other doesnt

mrman88
11-14-06, 01:41 PM
I replaced my filter with a cone style and removed the stock muffler which I replaced with a dual in/dual out flowmaster. It sounds excellent. I tried it with the resonators removed and the flowmaster, but it was way too loud for a Cadillac so I put them back on, but not that the Flowmaster is broken in a little the sound is awsome. I will try to post clips this week sometime.

todd2fst4u
11-14-06, 06:16 PM
I replaced my filter with a cone style and removed the stock muffler which I replaced with a dual in/dual out flowmaster. It sounds excellent. I tried it with the resonators removed and the flowmaster, but it was way too loud for a Cadillac so I put them back on, but not that the Flowmaster is broken in a little the sound is awsome. I will try to post clips this week sometime.
also if you could tell us the model # of the flowmaster you have, that would be great. thanks looking forward to the sound clips!

todd2fst4u
12-08-06, 08:12 PM
i installed a cone filter today. it sounds really cool.
http://todd.bluesubmarine.org/Cadillac/DSCN8364.jpg
http://todd.bluesubmarine.org/Cadillac/DSCN8363.jpg

PEETYZ
12-09-06, 05:27 PM
looks great! still have the resonators removed ? and do you notice a power difference from stock after the adding the filter and removing the resonators? I did :thumbsup:

todd2fst4u
12-09-06, 08:15 PM
yeah i still have the resonators removed. power seems alot more even with the cone filter. with the stock air box i noticed alot of torque when the butterfly valve would open around 4k rpm. power is very smooth all the way up to 7k now. i love the sound now though. very throaty from inside the car when you really step on it. i have to take some sound clips from outside to hear what it sounds like now though.

PEETYZ
12-10-06, 10:48 AM
yea i need to do a few new vids too its cold here in ohio and the car loves the cold air

CateraMV6
12-10-06, 12:11 PM
What size is the piping for the Cold Air Intake what size filter did you guys use for that.

todd2fst4u
12-10-06, 03:11 PM
its 1 3" piece of pipe