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  1. #1

    Default Spark Plugs/Wires

    Just looking for opinions on which aftermarket spark plugs/wires would be best for improved performance; I've been looking at E3 plugs and NGK plugs mostly. What brands are viewed as the best: E3, NGK, AC Delco, Bosch, Intel, Champion? Any testimonials based on personal experience would help.
    2003 Silverado 2500HD 6.0L Vortec V8
    2" Body Lift
    3" Suspension Lift
    Skyjacker Hydro 7000 Shocks
    Skyjacker Steering Stabilizer
    35" Tires with 20" American Racing Rims
    Velocity Cold Air Intake
    Billet Throttle Body Spacer
    BBK Performance Headers
    MBRP Cat-Back Exhaust System
    DiabloSport Predator- Soon to be tuned by Diablew

    "Soon to be leveling-kit"

  2. #2
    Master Mechanic Silverado Junkie's Avatar
    Join Date
    Feb 2010
    Location
    Lead Hill, Arkansas
    Posts
    541

    Default

    Ive always liked bosch plug wires and Bosch platinum 4 plugs. Never had any problems with them.
    1995 Silverado,Z71, 3-inch lift,2-inch leveling kit, SkyJacker Suspension, short ram-air intake, throttle body spacer, MSD ignition coil, straight pipes

  3. #3
    Sr. Apprentice
    Join Date
    Feb 2010
    Location
    Terre Haute, In
    Posts
    36

    Default

    I took a different route and bought some plugs I've never tried and so far I like them. The Champion Platinums, I don't know anybody that has them installed but I gave it a shot. I myself like to run AC-Delco Platinums and have always run MSD wires because of the low resistance when compared to others. I think it a preference as to what you want. Like every other thing in life you get what you pay for.

  4. #4

    Default

    i have ac delco iridiums, reason is because i herd vortecs "like" ac delco and also when u have iridium u are "supposed" to stay iridium

  5. #5

    Default

    ac delco iridiums, and MSD wire is the best way to go. AC's are a little expensive but i have always found them to perform the longest.

  6. #6

    Default

    The stock setup is just fine and aftermarket plugs and wires will offer hardly any noticeable improvement and many will degrade performance. GM motors really like AC plugs. Wires I use are stock OEM.

    NGK should be okay for plugs as they supposedly made the OEM plugs.
    2002 Tahoe LS 4x4 5.3 Flex Corvette Servo AVS In-channels JVC KD-PDR80 BB Engine Tune Front Mounted Receiver
    1984 3500 3+3 Crew Cab 350 w/Edelbrock 600 700R4 w/Corvette Servo & manual TCC AVS Surface Mount JVC w/Sub

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