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Thread: Exaust BAckpressure ?

  1. #1
    Join Date
    Apr 2008
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    Exaust BAckpressure ?

    Right now my setup is 3 inch off the stock y to a 90 that exits infront of right rear with no muffler. My ? is have I lost all my backpressure by doing this and if so what is the loudest muffler that will give me backpressure? Will a summit glasspack do the job? All comments appreciated!!!
    2006 extended cab, 6.0 swap, full bolt ons SOLD
    2011 ECSB, 6.2, 6 spd, 3.73, 5" lift, 33" nitto, limo tint, debadged, volant CAI, muffler delete, black bear tune 14.0 @ 98 on the 33'sSOLD
    2007 TBSS AWD, cam, stall, built trans, N2OSOLD
    2006 RCSB cammed LQ9, full exhaust, 3200 stall, 2-4 drop
    Quote Originally Posted by farmtruc View Post
    "if i have to explain, you don't get it"

    49 Ford F1
    355 chevy / turbo 350 / 12 bolt posi / camaro subframed

  2. #2
    Join Date
    Sep 2007
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    Southeastern Wisconsin
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    maybe...never used a glasspack... something like a flowmaster 40 series or those mufflers moze had were pretty sweet. anything will work really

  3. #3
    Join Date
    Feb 2007
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    Fort Worth
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    Quote Originally Posted by 99sierra4x4 View Post
    maybe... anything will work really
    +1

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

  4. #4
    Join Date
    Aug 2007
    Posts
    1,105
    i just have a three inch dumped off from the factory y under the bed. i mean you got the cats. .... what more back pressure ya want?
    2009 CHEVROLET 1500 with a MONSTER 4.8 between the frame rails!!

    Tuned by LSX Powersports ~ 4.10 ~ JBA Shorties ~ 4" Inlet/Outlet Spintech ~ Airaid Coldair
    CST 3.5" Spindles ~ Camburg Upper Control Arms ~ 2.5" CCM ~ FFR Tie Rods
    Full Throttle Suspension 3" Lift Blocks ~ Soft 8s wrapped in LT285/70/17 Silent Armors

  5. #5
    Join Date
    Apr 2008
    Location
    Okeechobee, Fl
    Posts
    2,007
    Do the cats do the job or is it worth it to spend $40 on the glass pack?
    2006 extended cab, 6.0 swap, full bolt ons SOLD
    2011 ECSB, 6.2, 6 spd, 3.73, 5" lift, 33" nitto, limo tint, debadged, volant CAI, muffler delete, black bear tune 14.0 @ 98 on the 33'sSOLD
    2007 TBSS AWD, cam, stall, built trans, N2OSOLD
    2006 RCSB cammed LQ9, full exhaust, 3200 stall, 2-4 drop
    Quote Originally Posted by farmtruc View Post
    "if i have to explain, you don't get it"

    49 Ford F1
    355 chevy / turbo 350 / 12 bolt posi / camaro subframed

  6. #6
    Join Date
    Feb 2007
    Location
    Fort Worth
    Posts
    9,578
    Naw, skip the cats and do a muffler...

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

  7. #7
    Join Date
    May 2003
    Location
    Idabel, OK
    Posts
    204

    Talking

    Back pressure? We don't need no stinking back pressure!





    Only put a muffler on if you want a different sound.
    99 C5 cam/boltons 400rwhp
    10 Sierra CC 6.2
    03 Suburban 5.3

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