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Old Jul 11, 2008 | 08:50 PM
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hello newbie here, My 99 ws6 conv. is just to quiet. Will removing my cat with stock exhaust improve sound, or will it just throw a code / check engine light. p.s anyone have a loudmouth system they want to sell? Thanks
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Old Jul 11, 2008 | 09:05 PM
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i doubt it will make it louder, and unless you buy an O2 sim or get it tuned out it will throw a code
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Old Jul 12, 2008 | 07:35 PM
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Just add a cat back to it or replace the muffler. You could also put on a cut out which is a cheap mod, the sound isn't that great though.
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Old Jul 13, 2008 | 06:45 AM
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Yes you'll notice the difference in sound by taking the cat off.


Check the For Sale section for a Loudmouth
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Old Jul 13, 2008 | 02:26 PM
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yes it WILL get louder and it WILL be raspy/kind of disgusting...the loudmouth will only make it WORSE unless you replace the resonator with a bullet or chambered muffler

how do I know? Been there/done that
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Old Jul 13, 2008 | 03:40 PM
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Originally Posted by muscatine73
hello newbie here, My 99 ws6 conv. is just to quiet. Will removing my cat with stock exhaust improve sound, or will it just throw a code / check engine light. p.s anyone have a loudmouth system they want to sell? Thanks
1st exhaust mod I did was to remove my cats...u need to tune them out or get 02 simulaters...it will be louder and sound meaner/better/more aggressive.
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