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Old 06-22-2010, 11:10 AM   #1
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Default Pro's vs Con's to going Catless??

As I am looking at putting LT headers on my 2000 5.3 I am also looking to delete the CAT so it is just the headers into the Y pipe then the Cat back system I already have! Any thoughts on the Pros and Cons of this?? I live in MI so we dont have smog inspections by the way ;-)
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Old 06-22-2010, 11:58 AM   #2
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enhaced smell of gas and noise...those are pro's and con's depending on your like...for me...PRO's :jest
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Old 06-22-2010, 12:11 PM   #3
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enhaced smell of gas and noise...those are pro's and con's depending on your like...for me...PRO's :jest
Ya I dont mind the smell at all, hell that is how it is suppose to smell!! How much extra noise are you getting? Any Raspyness? I run a stock setup with a flowmaster cat back currently (Super 40). I am going with a Doug Thorley LT Headers and Cat Back....hopeing they will balance out.
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Old 06-22-2010, 12:18 PM   #4
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my truck is way louder than most here would care to have. no rasp, it's too loud for rasp someone else will have to answer those quesitons. it will be quite a bit more noise i can assure you
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Old 06-22-2010, 12:34 PM   #5
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Don't use a flowmaster for sure, the drone will drive you nuts from 55-65 with no cats
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Old 06-22-2010, 12:34 PM   #6
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Well anyone reading this that has some video clips of a 5.3 with Headers, Cat Delete and exhaust please hook me up...Thanks!!!!
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Old 06-22-2010, 12:36 PM   #7
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Don't use a flowmaster for sure, the drone will drive you nuts from 55-65 with no cats
Thanks!! I was looking at the Doug Thorley System, they say it is a deeper but quieter sound like the Magnaflows.
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Old 06-22-2010, 12:41 PM   #8
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Mine is quite a bit louder without cats and Raspy too. Terrible drone at highway speeds around 2000 rpm. American Racing headers, 3" duals into 3" dual inlet/outlet Magnaflow with dual 3" tailpipes.
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Old 06-22-2010, 12:42 PM   #9
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http://www.youtube.com/watch?v=GX2XgusQtkA
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Old 06-22-2010, 12:45 PM   #10
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Sounds sick...obviously you have a cam in it!
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Old 06-22-2010, 12:45 PM
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