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Exhaust

This is a discussion on Exhaust within the External Engine forums, part of the LSx Technical Help Section category; what noticeable differences does an aftermarket exhaust do, im lookin at gettin just a 40 series flowmaster with the dual ...

  1. #1
    Member izzhemp's Avatar
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    Exhaust

    what noticeable differences does an aftermarket exhaust do, im lookin at gettin just a 40 series flowmaster with the dual outlet all together its goin to be like 220 bucks so its not a bad deal too me

  2. #2
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    Sounds better, allows for better flow. It's a gain, regardless.

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    Sold: LS1 '85 El Camino ls1camino's Avatar
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    2000 Grand Prix GTP
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    Well, anytihng sounds better than nothing (3.8 Exhaust is almost silent). Just be aware, the 3.8 sounds like a lawnmower (raspy) with aftermarket exhausts. That is the main reason, I have not put an exhaust on my 2000 GTP. I'm not saying "don't go for it", just be aware.

  4. #4
    formally 01 T/A 0verkill's Avatar
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    its a plus but dont get flowmaster go with some thing like magnaflow

  5. #5
    Slow'er'Ass Mr. Luos's Avatar
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    $400 will get you a full Magnaflow catback.
    2008 Trailblazer SS
    Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
    Lowered, HID's, tinted.

    1999 Pontiac Trans Am WS.6 #1747 SOLD
    531.1 RWHP 481.3 FT/Pounds all motor.

  6. #6
    LSX whore allbaugh_04's Avatar
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    I agree, don't bother with the flowmaster when a perfectly good magnaflow would be a better choice.

  7. #7
    Spaz is My Mentor SMWS6TA's Avatar
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    Quote Originally Posted by 01 T/A View Post
    its a plus but dont get flowmaster go with some thing like magnaflow
    +1
    Quote Originally Posted by Mr. Luos View Post
    $400 will get you a full Magnaflow catback.
    +1
    Quote Originally Posted by allbaugh_04 View Post
    I agree, don't bother with the flowmaster when a perfectly good magnaflow would be a better choice.
    +1


    Also +1 from me.

    3+1=4

    And Flowmasters rust like an SOB...

    I had a Flowmasters, then when I had my LTs and ORY it blew the baffles off the old ass muffler. When that happens it sounds like total ASS. I put on a Magnaflow and it has a nice rumble sound that I have been looking for. Not sure how it will sound on the 3.8, but on a LS1 it is nice!!!

    Also I've been told you get better HP gains with Magnaflow vs Flowmasters. I'm not sure if true but you have so far 4 ppl that tell you they have and like Magnaflow...

  8. #8
    Member izzhemp's Avatar
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    alright great, i know nothing about magnaflow so which would be the best one for what i have? and all im doing is puttin the new muffler so i have the dual outlets i dont wanna put alot of money in a v6 other wise i would go with a true dual

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