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best exhaust?

This is a discussion on best exhaust? within the External Engine forums, part of the LSx Technical Help Section category; i got a 99 z28 and am looking to start putting on some performence mods. im trying to research what ...

  1. #1
    Member pewterz55's Avatar
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    light pewter metallic
    1999 z28

    best exhaust?

    i got a 99 z28 and am looking to start putting on some performence mods. im trying to research what brand exhaust i want but everyone keeps tellin me and i keep reading completely different reviews on 1 set of pipes. flowmaster, exhaust, borla or corsa (if their worth the big dough) any one have any proven dyno answers for me or anything to help me decide? thanks

  2. #2
    Moderator Firebirdjones's Avatar
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    As far as dyno numbers, the closest we came was track testing several systems.
    What it boiled down to, if you stick with a 3 inch catback as most of them are offered as,,,you won't find much at all from a performance standpoint going from one to the other. Just pick a sound you like and makes you happy,,,and just go with it.

    For more performance we found it wasn't so much the muffler you chose,,,but the size and design of the overall system.

    If you stick with the single style systems as these cars came equipped with,,,then stepping up to the 3 1/2 inch or 4 inch pipe from mufflex will yield a nice performance gain over any 3 inch catback. Especially if you plan more HP later as in heads/cam etc...

    From there you can go to a real dual setup. I'd recommend the Bassani,,,or build one from scratch to avoid ground clearance issues. The cheap way out would be to dump it in front of the rearend,,,if you can live with tight ground clearance and inside resonance noises,,,then this might be for you.
    Last edited by Firebirdjones; 07-20-2009 at 07:57 AM.

  3. #3
    Member BlackSS1's Avatar
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    Quote Originally Posted by pewterz55 View Post
    i got a 99 z28 and am looking to start putting on some performence mods. im trying to research what brand exhaust i want but everyone keeps tellin me and i keep reading completely different reviews on 1 set of pipes. flowmaster, exhaust, borla or corsa (if their worth the big dough) any one have any proven dyno answers for me or anything to help me decide? thanks
    There is an article here on performance/HP of different catbacks. They were all within a couple HP of each other... Try search. You should add Magnaflow to your list, cheap, stainless and good performance.

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    Senior Member GULLETT17's Avatar
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    00 TA PWTR, 98 VertTA NBM
    80 TA BLK, 80 Formula NBM

    id recommend a magnaflow catback or texas speed rumbler x for true duals

  5. #5
    LSX whore allbaugh_04's Avatar
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    2000 Z28 Camaro

    X-pipe dual setups usually put down a few more hp than a catback. I use a magnaflow catback but i think duals can sound better. I wouldn't overlook magnaflow.

    Try some youtube searches or ls1sounds.com to see what you like. They all will gain some hp.

  6. #6
    Member BirdCountry02's Avatar
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    Maple Red Metallic
    2002 Trans Am M6

    Best headers, best catback, soundclips etc.

    Try here also. Lots of sound clips and many opinions. Mainly its all preference, your going to be the one who decides whats best on your car. Just do your research, listen to as many as you can as that is going to be what differs the most between brands. Also, don't overlook Magna IMO. I've got one with the cats deleted LT's and ORY and I love it. Good luck with your decision

  7. #7
    Member pewterz55's Avatar
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    light pewter metallic
    1999 z28

    thanks everyone.

  8. #8
    Visualize°Design°Create SSwt00SS's Avatar
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    '12 Silver SS 1SS
    '00 Black SS #8617

    there is no 'best' cat-back system out there.

    there are to many varibles to say brand 'x' made 3rwhp more than brand 'y', so everyone go buy brand 'x'. those differences can be as simple as dyno variances. obviously, any aftermarket system will out perform the factory set-up.

    it is true that TD will produce slightly more HP than a cat-back, however, you should notice an increase in TQ with TD's over a cat-back. each system has their trade offs in regards to sound, performance, clearance issues, etc.

    it all boils down what will compliment the mods you do have and mods you plan to do in the future, along with the sound that you are looking for.
    2000 SS - The Wicked Witch: °°Cammed 'n Slammed°° 458rwhp/410rwtq
    Quote Originally Posted by Bowtie_girl30
    I was hoping to just hump her up the exhaust cause she is so damn sexy....
    "Never argue with an idiot. They drag you down to their level, then beat you with experience."

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