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no muffler?

This is a discussion on no muffler? within the General Help forums, part of the LSx Technical Help Section category; so i just got my trans am about 2 months ago and ive noticed that it doesn't have any type ...

  1. #1
    Junior Member 00ls1TAWs6's Avatar
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    no muffler?

    so i just got my trans am about 2 months ago and ive noticed that it doesn't have any type of muffler, i was wondering if this is bad for performance or gas mileage

  2. #2
    Veteran 0rion's Avatar
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    no, it'll be fine. I ran with an open cutout for a couple years.

  3. #3
    Junior Member 00ls1TAWs6's Avatar
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    ok, but ive been getting like 16 or 17 mpg, you don't think that has anything to do with having no muffler?

  4. #4
    Veteran 0rion's Avatar
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    if anything your mileage should probably go up a little bit. I would look elsewhere. Is the car running funny at all? How heavy is your foot?

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    Junior Member 00ls1TAWs6's Avatar
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    well i get on it every once in a while, but i drive 15 miles to school everyday and i usally keep my foot off the gas then..it seems to be running right ever since i got the maf replaced

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    Veteran 0rion's Avatar
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    how many miles on the car and has a tune up been done? So the mileage is still bad after a new maf? What about O2 sensors, how many miles on those?

  7. #7
    Senior Member TransAm11973's Avatar
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    no offense but how did you not notice that the muffler was missing, I took my muffler etc off a few months ago for a bit and the thing sounded like a damn jet. Was kinda too loud for me and I love loud deep exhausts

  8. #8
    Junior Member 00ls1TAWs6's Avatar
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    Quote Originally Posted by TransAm11973 View Post
    no offense but how did you not notice that the muffler was missing, I took my muffler etc off a few months ago for a bit and the thing sounded like a damn jet. Was kinda too loud for me and I love loud deep exhausts
    it has pipe all the way back like it was proffesionally done, just with no muffler
    Quote Originally Posted by 0rion View Post
    how many miles on the car and has a tune up been done? So the mileage is still bad after a new maf? What about O2 sensors, how many miles on those?
    it has 69000 miles, and i just replaced the front o2s a month ago

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    Junior Member Z28onTHErun's Avatar
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    Okay to run no muffler or tails

    so is it okay to remove the muffler on my 99 z and just leave the over axle pipe with nothing more? i bought a magnaflow, but the tip on mine are too small to even make contact with the magna, besides i love the way it sounds without the muffler...ive been told it could hurt my exhaust valves, but it wasnt likely. What do you think? I dont want to risk damage for the sound, but dam it sounds good...Thanks

  10. #10
    Member muteki's Avatar
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    Have you checked if the air filter looks like you vacuumed last night's party?

  11. #11
    Member red99ws6's Avatar
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    ive ran a few different vehicles without any mufflers for long periods of time without any issues

  12. #12
    Ebaaaaaaaaa Speedy_Gonzales's Avatar
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    make sure all your tire pressure is normal and cleaning your MAF will help your mpg

  13. #13
    Junior Member 00ls1TAWs6's Avatar
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    Quote Originally Posted by SpeedAddict38 View Post
    make sure all your tire pressure is normal and cleaning your MAF will help your mpg
    like i said above, i replaced the maf a month ago and i checked all of the tires too
    Quote Originally Posted by muteki View Post
    Have you checked if the air filter looks like you vacuumed last night's party?
    it seems to look clean, i don't know the last time it was replaced...i figured with a manual i should be getting better than 17 or 18 mpg

  14. #14
    Formulatastic yellowv's Avatar
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    Quote Originally Posted by 00ls1TAWs6 View Post
    like i said above, i replaced the maf a month ago and i checked all of the tires too


    it seems to look clean, i don't know the last time it was replaced...i figured with a manual i should be getting better than 17 or 18 mpg

    Are you talkin city or highway mileage?

  15. #15
    Junior Member 00ls1TAWs6's Avatar
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    Quote Originally Posted by yellowv View Post
    Are you talkin city or highway mileage?
    A little of both, during school i drove 30 highway miles each day, i don't drive very much in the city

  16. #16
    Formulatastic yellowv's Avatar
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    Quote Originally Posted by 00ls1TAWs6 View Post
    A little of both, during school i drove 30 highway miles each day, i don't drive very much in the city
    Like how many highway vs. city miles. I drive over 90 highway miles a day and can get about 26-28 on the highway. In town I am lucky to get 15.

  17. #17
    Member bryceslu's Avatar
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    thats not unusually low for mixed driving...it all depends how heavy of a foot you have.
    I get as much as 32 highway around 18 mixed and as low as 9 around town.
    94 m6 Formula - Sold
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