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Thread: exhaust question

  1. #1
    Join Date
    Nov 2009
    Location
    Spring, TX
    Posts
    291

    exhaust question

    dumb question but whats the stock exhaust pipe size on a 2005 4.8...is it 2.5'' or 3''

  2. #2
    Join Date
    Apr 2008
    Location
    newburgh, NY
    Posts
    512
    2.75
    Step 1. crus at it.
    Step 2. get a hammer.
    Step 3. torch it.

  3. #3
    Join Date
    Feb 2007
    Location
    Fort Worth
    Posts
    9,578
    It's 2.5" from the stock manifolds to the Y. From there, its 3" to the muffler. Then its 2.5" from the muffler to the tailpipe.

    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

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