Adding Cats....Quieter????
Thread Starter
Racer
Joined: Oct 2008
Posts: 332
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From: Lees Summit Mo
Adding Cats....Quieter????
I have LG long tubes, no cats and Corsa Touring.....
I am adding LG high flow cats....Wanting it to be not quite so
loud. Anyone ran this set up both ways? And if so, did it
quieten it down a bit?? Thanks for any info bros!
I am adding LG high flow cats....Wanting it to be not quite so
loud. Anyone ran this set up both ways? And if so, did it
quieten it down a bit?? Thanks for any info bros!
Thread Starter
Racer
Joined: Oct 2008
Posts: 332
Likes: 0
From: Lees Summit Mo
Thanks for the info...any knowledge of how loud it is with no cats as compaired to with cats?? Trying to find out if the cats will effect the level of sound much??
Le Mans Master
Joined: Sep 2007
Posts: 7,604
Likes: 8
From: Belleville Il
While I don't run them,,,I have helped put some Random technology high flows on my buddies car,,and I am sure they are all about the same construction. I would guess there would be a slight improvement ,,but not very much. They are pretty small in size,,and the catalyst honeycomb matrix is pretty wide open structure compared to stock cats!! With Corsa Touring they should help a little,,just a W.A.G.,,I'd say 10-15% reduction!!
Instructor
Joined: Jun 2007
Posts: 103
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I have a Z with random technology cats and no headers. It made that car quite a bit louder. A friend of mine has a C6 and we had to remove the cats; one was bad. He has headers and it made the car slightly louder. Headers seem to make it talk.
LR
LR
Thread Starter
Racer
Joined: Oct 2008
Posts: 332
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From: Lees Summit Mo
Yea... I had put the Corsa on with stock exhaust manifold and cats and it sounded much better... But when I went to long tubes and no cats that thing was and still is a monster. The car is H/C car and the thing sounds down right mean at idle and all thru the rpm range. I regained some of the low end torque lost with the cam and would not consider going without the headers but want to mellow it out sound wise anyway and I'm hoping the cats will improve that situation???
Le Mans Master
Joined: Aug 2005
Posts: 7,890
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From: FL
I have heads/cam forged engine supercharger, long tubes
I have the answer for you because I had random tech high flow cats (which I have for sale by the way haha)
I removed them last week and the car didn't seem to get any louder. So they dont make much of a difference at all in sound like peter pan said. I have the pacecar catback and I think its a tad too loud but I like it, surprised with the touring that you have complaints.
Now if you weld the stock cats on I think it'll make a 10% difference
the best way to quiet your car at this point is a zo6 catback
I have the answer for you because I had random tech high flow cats (which I have for sale by the way haha)
I removed them last week and the car didn't seem to get any louder. So they dont make much of a difference at all in sound like peter pan said. I have the pacecar catback and I think its a tad too loud but I like it, surprised with the touring that you have complaints.
Now if you weld the stock cats on I think it'll make a 10% difference
the best way to quiet your car at this point is a zo6 catback
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Thread Starter
Racer
Joined: Oct 2008
Posts: 332
Likes: 0
From: Lees Summit Mo
I have heads/cam forged engine supercharger, long tubes
I have the answer for you because I had random tech high flow cats (which I have for sale by the way haha)
I removed them last week and the car didn't seem to get any louder. So they dont make much of a difference at all in sound like peter pan said. I have the pacecar catback and I think its a tad too loud but I like it, surprised with the touring that you have complaints.
Now if you weld the stock cats on I think it'll make a 10% difference
the best way to quiet your car at this point is a zo6 catback
I have the answer for you because I had random tech high flow cats (which I have for sale by the way haha)
I removed them last week and the car didn't seem to get any louder. So they dont make much of a difference at all in sound like peter pan said. I have the pacecar catback and I think its a tad too loud but I like it, surprised with the touring that you have complaints.
Now if you weld the stock cats on I think it'll make a 10% difference
the best way to quiet your car at this point is a zo6 catback
This thing sounds angree! I do like it and wouldn't say I have a complaint... Just want to tone it down a tad!!! You can still cruise at highway speeds and only slightly notice an exhaust note....Thanks for the info all!!!
Pro
Joined: Jun 2007
Posts: 632
Likes: 6
From: St. Louis Missouri
As far as the Corsa's go, don't let the word "Touring" fool you!!!
This thing sounds angree! I do like it and wouldn't say I have a complaint... Just want to tone it down a tad!!! You can still cruise at highway speeds and only slightly notice an exhaust note....Thanks for the info all!!!
This thing sounds angree! I do like it and wouldn't say I have a complaint... Just want to tone it down a tad!!! You can still cruise at highway speeds and only slightly notice an exhaust note....Thanks for the info all!!!
Le Mans Master
Joined: Aug 2005
Posts: 7,890
Likes: 0
From: FL
zo6 catback would probably work for you or the touring. its hard because this is all opinion on what loud is...I had the B&B route 66 before it was really quiet, quieter than a zo6 catback probably