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SLP Loudmouth

This is a discussion on SLP Loudmouth within the General Help forums, part of the LSx Technical Help Section category; I have a Loudmouth 1 on my TA and it pops in the morning when i leave the house everytime ...

  1. #1
    Member Fade2Black's Avatar
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    2000 TransAM M6

    Question SLP Loudmouth

    I have a Loudmouth 1 on my TA and it pops in the morning when i leave the house everytime i let off the gas to change gears. It only does this for about the first 1/2 mile to a mile though then it stopes for the rest of the day. My exhaust didnt pop before the loudmouth was put on. Anyone elses pop? Should it do this?

  2. #2
    Story of My Life!! BIG D's SS's Avatar
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    07 TBSS, 07 GSXR1000

    I have a Flowmaster catback and before I put L/T's and ory pipe it done that for about the first half mile or so. It is normal, but I don't know why. Don't be alarmed.

  3. #3
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    98 Trans Am convertible

    Since i put the LM on my car it does the same exact thing its normal.

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    Senior Member 02z28ls1's Avatar
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    2002 Z-28 Camaro M6

    I think it's because the air pump is on when you first start it up-causing a slight backfire.With the stock exhaust my car does pop from time to time.

  5. #5
    Story of My Life!! BIG D's SS's Avatar
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    Pull the fuse on the air pump and see if it still does it. I did away with the air pump and egr. In the engine compartment there is a fuse just for the air pump. Pull and see if it still does it. THat way you will know that is what's causing it.

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