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flowmaster 80 series

This is a discussion on flowmaster 80 series within the V6 forums, part of the Vehicle Specific category; does flowmaster 80 series do anything performance wise....hp gain?...

  1. #1
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    flowmaster 80 series

    does flowmaster 80 series do anything performance wise....hp gain?

  2. #2
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    short answer = no
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  3. #3
    Hotrod
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    Just the muffler...no. Add headers and a high-flow cat and it will.

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    thanks

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    Life in the Fast lane sunsetorangess's Avatar
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    Flowmaster sounds great but as far as performance i wouldnt wast the cash.
    J
    2001 SS, Its not the car its the Driver that matters....

  6. #6
    Member MegaMan's Avatar
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    Flowmaster isn't really known for their performance enhancement...in the v6 world at least. I don't know of any dyno tests however.

  7. #7
    Member 98Z-28Camaro's Avatar
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    In my application it actually hurt my performance. I switched to a more open exhaust and it dramatically helped me.

  8. #8
    Member NHRAMAN's Avatar
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    sorry guys--that 80 series is better flowing and much better sounding than the stocker...you will probably pick up 5-8 hp and the sound of it alone is worth changing JUST the muffler if $ is tight.
    99 WS6 M6 NBM !Cags,!Cats,Vinci/Crane,Hurst,Detroit TruTrac,3:73,31 Splne,Edel.Race LT's,ORY,QTEC,Flow,ARP,Percy,MSD,SLP,AC/DELCO,Bosch,GMPP,Cntrfrce DF,Htchkiss,Susp.Tech,Lakewood,285's,Bilstein,Pro-kit,SLP,RK Sprt,A/Meter,Red Optima,Magnaflow S/S Tips,Hd Pins,Tint,Fire.Ex,[*4 Hot Rod Power Tours*]

  9. #9
    The Bandit Wesman's Avatar
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    I have an 80 Series flowmaster on my 98 LS1. It sounds good, but it could definitely be louder.

    Not sure how it is power wise, since it was on the car when I bought it. Between the flowmaster muffler and the 3" catback though, it probably makes around ~10HP over the stock exhaust.

  10. #10
    Senior Member MadSeason's Avatar
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    on a v6 the flowmaster's flow problems aren't an issue

  11. #11
    2000pontiac6
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    Quote Originally Posted by Wesman View Post
    I have an 80 Series flowmaster on my 98 LS1. It sounds good, but it could definitely be louder.

    Not sure how it is power wise, since it was on the car when I bought it. Between the flowmaster muffler and the 3" catback though, it probably makes around ~10HP over the stock exhaust.
    V8 exhausts seem to be very different with flowmaster, plus 10hp gain on an ls1 is equal to much less on a v6

  12. #12
    1 BAD ASS BOWTIE StangKiller615's Avatar
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    Quote Originally Posted by 2000pontiac6 View Post
    V8 exhausts seem to be very different with flowmaster, plus 10hp gain on an ls1 is equal to much less on a v6
    Yeah Flowmaster sucks for LS1's.

  13. #13
    go w/the flowmaster 40, thats what i have and it sounds real good for a 6banger..........the 40 series sounds much more aggressive than the 80 series

  14. #14
    The Bandit Wesman's Avatar
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    Quote Originally Posted by StangKiller615 View Post
    Yeah Flowmaster sucks for LS1's.
    I don't think mine is too bad...sounds pretty good if you ask me. Maybe not super loud, but it sounds good

  15. #15
    Senior Member MadSeason's Avatar
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    Quote Originally Posted by Wesman View Post
    I don't think mine is too bad...sounds pretty good if you ask me. Maybe not super loud, but it sounds good
    sound is great performance is horrible

  16. #16
    The Bandit Wesman's Avatar
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    Quote Originally Posted by MadSeason View Post
    sound is great performance is horrible
    Any data to back that up?? Just curious, if its that bad I may consider replacing the muffler.

  17. #17
    Senior Member MadSeason's Avatar
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    Quote Originally Posted by Wesman View Post
    Any data to back that up?? Just curious, if its that bad I may consider replacing the muffler.
    There's plenty of data floating around here and on tech showing about a 10-15 rwhp restriction when switching to a more free flowing muffler and the nickname chokemaster

  18. #18
    The Bandit Wesman's Avatar
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    Quote Originally Posted by MadSeason View Post
    There's plenty of data floating around here and on tech showing about a 10-15 rwhp restriction when switching to a more free flowing muffler and the nickname chokemaster
    Okay thanks I'll lcheck it out then.

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