LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Cat Delete Questions

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Old 05-30-2009, 09:44 PM
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Default Cat Delete Questions

ive been thinkin about getting rid of my cat and just running a straight pipe...i dont have a cat back i just have an electric cut out and i plan on getting LT's and ORY soon...my question is..how will this effect the sound of my exhaust..i heard things like it gets raspy when you delete the cat and i do not want a raspy exhaust...and for the record the cut out is open the majority of the time lol thanks
Old 05-30-2009, 09:59 PM
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yea ive had no cats since 06 and if the loudmouth can be considered to have a "muffler" then i have that as well...resonator i suppose. ill tell you one thing, the combination in my car is absolutely obnoxious, just the way i like it haha it is extremely loud but not quite raspy per say. it does drone quite a bit throughout starting at around 2k if i really get on it....ill post my vid and let it do the talking, just a little exhaust clip....

http://www.youtube.com/watch?v=7aTxKDKXc1s
Old 05-30-2009, 11:16 PM
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Only "raspy" with a resonator type muffler like the Loudmouth. Some like it some dont.
Old 05-31-2009, 12:08 AM
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Mine was gutted by it's original owner.
When I had a stock muffler I couldn't even notice the high rpm popping that the cat made.
When I had a no muffler dump it was loud as **** and sounded like someone setting off several M80's underneath my car.
Now with a Thrush (flowmaster ripoff) muffler the cat popping is loud but not overly obnoxious.
Old 05-31-2009, 01:45 AM
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I have a high flow cat with straight pipe with no mufflers Mid Length headers and aftermarket y-pipe. here is a sound clip of my exhaust. it does pop alot when im slowing down but i like it!

http://www.youtube.com/watch?v=8bp_FdJWB-8

http://www.youtube.com/watch?v=YUuasKJmUqk
Old 05-31-2009, 10:01 AM
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Originally Posted by SSstud
yea ive had no cats since 06 and if the loudmouth can be considered to have a "muffler" then i have that as well...resonator i suppose. ill tell you one thing, the combination in my car is absolutely obnoxious, just the way i like it haha it is extremely loud but not quite raspy per say. it does drone quite a bit throughout starting at around 2k if i really get on it....ill post my vid and let it do the talking, just a little exhaust clip....

http://www.youtube.com/watch?v=7aTxKDKXc1s
That is obnoxious, and my LT1 is awaiting a similar combo, actually. I already have Hooker SuperComp LT's, Hooker 3" ORY, and a Magnaflow catback (3" w/3.5" tips). I traded the Magnaflow for a LM1 to a friend with a cammed LS1. No cat, and I thought it sounded great with the Magnaflow. Here's a good driveby shot @ the track:

http://www.youtube.com/watch?v=U5_jMlK5ULM FF to 1:10


Once the cat went away and the lts and ory went on, I felt some nice gains. The car got IMMEDIATELY much more fun to drive.
Old 05-31-2009, 05:14 PM
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thanks for the feed back everybody...im gonna find a shop by me to cut out my cat and weld up a test pipe for me...one of my favorite things about my exhaust is that popping sound that it makes when im slowing down...94CAMAROZ28SS your car is beautiful i love that color
Old 05-31-2009, 05:16 PM
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I have no Cats and a 3.5" Cut-out coming off of my 4" Y-pipe.

Yea it's rediculous.




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