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Supercharger & exhaust catback pipes

This is a discussion on Supercharger & exhaust catback pipes within the Forced Induction forums, part of the LSx Technical Help Section category; this is an exhaust question as it relates to SC & boost/power. Just bolted on a Magna charger MP112. I ...

  1. #1
    Junior Member
    Join Date
    Aug 2005
    West Palm Beach, FL

    1999 WS6 Conv.

    Supercharger & exhaust catback pipes

    this is an exhaust question as it relates to SC & boost/power.
    Just bolted on a Magna charger MP112. I am running Pacesetter longtubes & off road Ypipe. This runs into my stock pipe ( which is pretty big )then a magnaflow muffler.
    Am I risking loss of power by not expanding into a little bit larger pipe to the muffler ? Will that effect the boost ?

    FYI: I have a slightly reduced pully (3.1") to give 7lbs. as it compensates for my heads cam & longtubes already.
    99 WS6, Black Vert M6
    Lid, K&N, PPTB, PRC 2.5 heads, Comp Cam 228/.588 112 lsa w/ suporting mods, 96mmNW TB,102mmFast, Pacesetter LT's, ORY, Magnaflow, Tune, 4:10's, Aurburn Posi, LS7 Clutch, B&M shifter, Stano/ Koni , 18" C6 rims, 295/30 Kumho tires.

  2. #2
    Member Faught's Avatar
    Join Date
    Jun 2010
    round rock TX

    1999 Trans Am

    you will not loose boost due to exhaust with a supercharger. a supercharger uses the engine belt system to rotate a compression system to create pressurized air that is then forced into the combustion chambers. a supercharger its self in not effected by exhaust. if you still have the stock I pipe you might see a change in power if you are running it into a 3" magnaflow muffler, if not there will be no large gain in swapping out the I pipe, if you go to a larger pipe you might see 2-5 hp max.

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