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exhaust sound with no cats? let me know if its normal

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Old 08-27-2003, 08:52 PM
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Default exhaust sound with no cats? let me know if its normal

alright well i took off my cats, im gettin a lot of poping and crap. is that just normal... iwas told it was from a loss of back pressure it just does that. is this true and just something that comes with takin off the cats?
Old 08-27-2003, 09:43 PM
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Default Re: exhaust sound with no cats? let me know if its normal

so i take it noone in this forum has any exhaust work done.....and i know thats not true so someone say something here please!
Old 08-27-2003, 11:46 PM
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Default Re: exhaust sound with no cats? let me know if its normal

its normal
Old 08-27-2003, 11:59 PM
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Default Re: exhaust sound with no cats? let me know if its normal

Mine does it too and it's completely normal.

Ryan
Old 08-28-2003, 02:49 AM
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Default Re: exhaust sound with no cats? let me know if its normal

Yeah, when I took the cats off it gets raspy sometimes around 2500 rpms, and pops from time to time when I let off the gas... BUT my cam is sooo much more pronounced I can live with the occasional popping
Old 08-28-2003, 03:07 AM
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Default Re: exhaust sound with no cats? let me know if its normal

all I have is a bullet race muffler, stock manifolds and stock cats......I get popping just like what everyone is talking about.
Old 08-28-2003, 06:43 AM
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Default Re: exhaust sound with no cats? let me know if its normal

Does the popping while letting off only occur while the AIR pump is on? I removed the AIR system on mine and no more popping under decel. I also have a Predator programmer.
Old 09-05-2003, 09:58 AM
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Default Re: exhaust sound with no cats? let me know if its normal

I still have cats and factory exhaust but I have a cutout. I get pops all the time and I love the sound, but my dealer told me that my cats are leaking because of low back pressure. Hopefully it won't matter soon because I'm getting test pipes and losing the cats.
Old 09-05-2003, 10:24 AM
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Default Re: exhaust sound with no cats? let me know if its normal

cats are leaking?
Old 09-06-2003, 12:35 AM
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Default Re: exhaust sound with no cats? let me know if its normal

dealer is a moron
popping not from cats leaking...
Old 09-07-2003, 04:01 AM
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Default Re: exhaust sound with no cats? let me know if its normal

Does the popping while letting off only occur while the AIR pump is on? I removed the AIR system on mine and no more popping under decel. I also have a Predator programmer.
i thought the AIR system was on active during intial start up to help heat up the cats.

Old 09-07-2003, 08:58 AM
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Default Re: exhaust sound with no cats? let me know if its normal

Remove the AIR pump.
Old 09-07-2003, 09:06 AM
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Default Re: exhaust sound with no cats? let me know if its normal

its gone now, along with the egr




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