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Exhaust question

This is a discussion on Exhaust question within the Internal Engine forums, part of the LSx Technical Help Section category; i have a stock ls1 i was going to go with long tubes to y pipe to mangnaflow to 2 ...

  1. #1
    Junior Member leod123's Avatar
    Join Date
    Oct 2007

    Exhaust question

    i have a stock ls1 i was going to go with long tubes to y pipe to mangnaflow to 2 cutouts off the headers or go long tubes to x true duels what do u think would be a better also does any one no how much hp you loose if u do true duels over the Axel vs getting dumps off the x pipe thanks

  2. #2
    Senior Member Tyler_LS1's Avatar
    Join Date
    Sep 2006
    Canby, Oregon

    1999 Camaro SS-M6 #1775

    Im getting my LT's early this week and i will put them on with my magnaflow catback and ORY pipe, ive heard sound clips and it sounds pretty good!

    check this site out...
    1999 Camaro SS/ Pewter/ #1775 - LS1 6-speed - Predator 3 Custom Tune - Pro 5.0 - LS7 Clutch - 3.90's - Koni's - Strano Springs and Sway Bars - SFC's - Full UMI Chassis and Suspension - LS6 Intake PnP TB - ARH LT's and Kitty Ran Away - Magnaflow.

    12.6 at 112

  3. #3
    Senior Member Orcus79's Avatar
    Join Date
    Feb 2006

    2002 WS6

    I think the losses of over the axel vs dumps would minimal as its so short and with duals you as basicly doubling the cross section of pipe, dump imo give better clearance on axel travel and the reverb off the pavement and bottom of the car making it seem louder.

  4. #4
    Awaiting Activation
    Join Date
    Mar 2006
    LS1 land
    i would go duals. As long as the over the axel setup is full mandrel bend than you should loose very little hp. If it is non- mandrel bend over the axel than the difference will be much larger.

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