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  1. #1

    Default looking for more HP and MPG

    I'm looking for more horsepower and gas mileage for my 01 silverado. So far I've already made a few mods but can't think of anything else to do without messing with the internals. so far I have: K&n intake kit, flexalite electric fan, edelbrock headers, amsoil synthetic oil, dual exhaust 40 series muffler, and a hypertech programmer. what else can I do in the price range of $0-500. I'm thinking about dropping some money on a MSD ignition kit, can anyone vouche for MSD?? Thank you all in advance.
    2001 Silverado Z71, 5.3L, K&N cold air intake, flexalite electric cooling fan, Edelbrock shorty headers, Amsoil synthetic oil, dual exhaust flow master 40 series muffler, Hypertech max energy programmer, MSD Ignition plug wires.

  2. #2


    Sounds like you've done quite a bit! Sound like a sweet truck. The only thing I can think of that would be another "bolt-on", is an aftermarket MAF sensor. I know JET and Granatelli make one for GM trucks. I've heard people say they received performance boosts from them, but I'm not sure about fuel mileage.
    Hallsville, TX

    2005 Silverado 1500 LS Crew Cab 5.3L 2WD
    Magnaflow Exhaust
    Hypertech Max Energy Programmer
    Suspension Leveling Kit
    Putco Element Window Visors
    Carriage Works Billet Grille
    TruXedo TruXport Tonneau Cover

  3. #3
    Sr. Apprentice EKperformance's Avatar
    Join Date
    Oct 2008
    lake City Florida


    how about a different ring and pinion to change the rear end ratio, do you know wich one you have?
    2002 silverado 4.3 5spd / off road y pipe, flowmaster split duals, K&N filter
    ported throttle body , ported heads and intake < all by me

  4. #4


    Agreeded w Matt on the MAF. Also you can do a forced air induction for your filter.
    Some sort of bed cover will help with milage also. Dont know what other "bolt on" applications can be helpfull. What kind of milage do you currently get, and w what driving habits??

    2002 Jeep Wrangler Sport 4x4 (the Yellow Jacket)
    4inch suspension 3inch body
    Straight 6 (383 Stroker within a year)
    36inch SuperSwamper TSL.
    Detroit Loccers
    Daily Driver Weekend Wheeler
    much more...

    2004 Sierra crew cab, 2wd, 5.3 V8
    2inch Daystar Leveling kit
    single dumped Flowmaster 40 sieries exaust(removed)
    Mb Blitz Chrome wheels
    Leer Bed Cover(for sale)
    50k miles

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