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  1. #1
    Newbie Huey's Avatar
    Join Date
    Jan 2011
    Santa Cruz ca
    Blog Entries

    Default Suprised at 2002 LS1500 shortbed 5.3 performance

    Just purchased 2002 and it does move! Very suprised at just how well.
    I'm wanting to learn from those that have been there done that when
    it comes to making 5.3 run well, especially from MPG standpoint.

    Have many of you changed or upgraded a chip and if so was it worth it?
    Can you recommend a chip manufacturer and advise how it improved you

    I also interested in putting on K & N filter. Have any of you had success with one?

    Any thoughts on what to look for when it comes to preventitive mantainance?

    Looking forward to learning and sharing.
    Thanks Bob

  2. #2
    stephan's Avatar
    Join Date
    Sep 2010
    Far West, Oregon USA,
    Blog Entries


    Hey Bob, welcome to the GM truck club. I've used K&Ns filters on cars, trucks, & motorcycles for years & they work well. Chips also work well, but usually when guys get them they don't tune them for mpg, but for performance instead. MPG & torque gains can be had with long tube equal length headers, high flow cats, low restrictive mufflers, & mandrel bent exhaust pipes.
    As far as preventative maintenance, check your service intervals posted in your owners manual. It is the best guide out there & written by the guys that know these vehicles the best.
    1988 Chevy C-3500 2wd (no pic)
    350 c.i. 5.7 L Stock Block, 4 Bolt Mains
    L-31 Vortec Heads, Edelbrock Cam & Intake,
    Holley 650, Flowtech Headers, Magnaflow exh.
    Jet Trans 700R4, B&M Ratchet, 4:10 gears,
    3" susp. lift kit "shadetree"
    No rev limiter, No speed limiter lol

  3. #3
    Legend Bigbomber's Avatar
    Join Date
    Feb 2010


    Welcome to the club!
    [/SIGPIC]2009 Chevy Silverado LT 1500 EXT CAB 4X4 Vortec 4.8L SFI,K&N air filter,Weathertech Floor Liners ,Weathertech Stone/Bug Deflector, Line X Spray On Bedliner, TruXport Rollup Tonneau Cover, Molded Mudguards, Viper 5701 LE 2 way Security Alarm/Remote Starter, Xm Satelite Radio,BILSTEIN 5100 rear shocks,BILSTEIN 5100 front levelling shocks,READYLIFT 2" rear lift blocks,Goodyear Wrangler Territorys -265/70R 17"

  4. #4


    Welcome to the club!

    Bobby - North Carolina
    2008 4x4 5.3L V8
    6" Suspension Lift and 1.5" Body Lift
    20x9 Ballistic Jesters w/35" Toyo Open Country MT's & 1.5" rear wheel spacers
    4:56 Yukon Gears
    Hypertech Speedometer Calibrator
    Baja style bed mount spare tire carrier
    Flowmaster 40 series dual exhaust
    Recon Smoked LED tails/3rd brake lights/black projectors w/switchback LED's in the corners
    N-Fab Nerf Steps
    K&N CAI
    No Fear Pedals
    Tint, Line-X bedliner, Window visors, Rear wheel well liners
    Painted front grill, bow ties and door badges, de-"lettered" tailgate
    Powder coated front and rear bumpers

  5. #5


    Welcome to the G M T C !Welcome to the G M T C !

    2010 Z/71 Colorado C/C
    Black 4X4 w/5.3L V8
    2007 Winnebago Adventurer
    w/8.1L Chevy & Allison 6spd.
    Canyon Lake, Texas

  6. #6

    mfleetwood's Avatar
    Join Date
    Jul 2010
    Denver, CO
    Blog Entries



    Mike (Denver, CO) - 2008 Sierra 1500 Z71 SLE 5.3L 4WD

    SUSPENSION: Rancho 4" Suspension Lift; Rancho RS9000XL Shocks; Rancho Skid Plates; Rancho MyRide Wireless Shock Controller;
    BFG All Terrain KO 315/70/17
    DRIVE TRAIN: 4.56 Gears; Detroit TrueTrac Differential; True Cool 40k Transmission Cooler
    PERFORMANCE: DiableSport Predator Tuner; Custom Tuned by Diablew; Magnaflow Exhaust; AFE Cold Air Intake
    ELECTRONICS: Kenwood DNX6180 Touchscreen; Subthump box w/10" Kicker; Driver Information Center (DIC); Rear View Camera
    ACCESSORIES: Westin Brush/Grill Gaurd; Westin Nerf Bars; Truxedo Tonneau; 20% Tint; Tow Mirrors w/Heat & Signals

  7. #7


    Welcome to the club Bob. I have an '02 as well and as my signature says, I've put a little work into it. With the all the mods I have on the truck i average about 19.25 MPG on the highway and 16 around town. I did see some MPG gains out of my Hypertech programmer, but like Stephan said, most of my mileage improved with the exhaust and intake. But there are programmers that are just for fuel economy, if that's all you are looking for.
    2002 Chevy 1500 Ex-cab Z71: 5.3L, auto 4, shorties, hi-flow cats, true dual 2.5" straight pipes, AirAid intake, TBS, Platinum plugs, 8.5mm wires, programmer, 3in w/ 33s, also has the composite bed

    2010 GMC 1500 Crew Cab Z71 w/ All Terrain package: 5.3L, auto 6, 2" Zone leveling kit, AirAid Jr. Intake Kit

  8. #8
    Newbie Huey's Avatar
    Join Date
    Jan 2011
    Santa Cruz ca
    Blog Entries

    Default Thanks for your ideas and welcome messages

    Thanks to all that replied. I have a lot to learn and appeciate your advise. Just posted first picture this morning. My 1500 LS 5.3 is short bed, flare side and since I just filled it up I will have to wait and see how the mileage is, but I will review the Hypetech idea and others. The LS did have CAT system installed, thank you previous 1 owner. It does have some dings and dents that will be corrected and with time make it another Chevy of class. Any ideas you wish to share please do so. Many thanks, Bob

  9. #9
    murdog94's Avatar
    Join Date
    Feb 2008
    Cloquet, Minnesota, United States
    Blog Entries


    Welcome aboard!


    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

  10. #10
    Jr. Mechanic Jay's Avatar
    Join Date
    Dec 2010
    Lakeville, Massachusetts, United States


    Hey Bob...Welcome. In my short time as a member here I have found a lot of guidance from these folks. There are people on this site that have a great deal of knowledge and will be more than willing to help.

    If you have a the post in the General Tech Section that is titled "Things that I know - Answers to FAQs" by mjalstad... I think you will find it very helpful in providing guidance regarding what you're looking to do. Very well written!

    Good luck, Man!!

    2003 Chevy Silverado Ext Cab Z71
    2" Rough Country Leveling Kit and Stabilizer
    285/65R18 BFG TA KO on Black Rhino Rockwell
    Magnaflow Cat Back
    K&N 57 Series Intake
    Diablosport Predator
    Nerf Bars, Tint, Soft Tonneau

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