Top 5 Performance Mods For 5.3 Silverado or Sierra

Best Upgrades For 5.3 Vortec on January 2020 Shopping Deals at Bestonio.com

  • Michigan Motorsports LS1 Rocker Arms and Bolts with Trunion Kit Installed - FITS LS2 LS6 LQ4 LQ9 LY5 LY6 LM7 4.8 5.3 5.7 6.0

    • Brand: Michigan Motorsports
    • Manufacturer: Michigan Motorsports

    Replacing your rockers with a true roller bearing setup is highly recommended whether you have a stock LS motor or a highly modified LS motor The stock bearings have a tenancy to fail. These rocker arms are a must have for any aggressive heads and cam combo and are the same rockers we utilize on our 1,000 hp Turbo Motor. We utilize LS1 rocker arms ... [read more]

  • ICT Billet 5.3L LS Truck Side Bolt Coil Brackets Mount Valve Cover 19005218 D585 LSX Swap Heat Sink LM7 LR4 LQ4 L59 LQ9 LM4 L33 LH6 L92 L76 LY2 LY5 LY6 LC9 LMG L98 L96 LC8 551531

    • UPC: 656729845318
    • Color: Natural
    • Brand: ICT Billet
    • Manufacturer: ICT Billet

    LS Truck Coil Brackets This will only fit  "Heat Sink" Style D585 19005218 Coils (see photo coil guide) Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum Natural finish aluminum as shown Package Includes: 2 brackets and mounting hardware as shown  ***Does NOT include Coils***

  • Edelbrock 22716 Max-Fire Ultra 50 GM LS Truck Spark Plug Wire Set, Magnetic Kevlar Core Material, Heavy Duty 8.5mm Diameter Silicone Jacket, High EMI/RFI Noise Suppression

    • UPC: 085347227167
    • Color: Black
    • Brand: Edelbrock
    • Manufacturer: Edelbrock

    Max-Fire(R) Ultra-Spark(R) performance spark plug wires are manufactured from highest quality materials to help deliver maximum voltage - ensuring the ultimate performance. These wires have an extremely high EMI/RFI suppression along with a very low resistance to help deliver the most spark possible. They feature a heavy duty 8. 5mm diameter silico... [read more]

  • Performance Upgrade - (4 Hole) Re-manufactured OEM Delphi 25317628 Fuel Injectors for 2001-2007 Chevy/Cadillac/GM 4.8 5.3 6.0L Set of 8

    • Brand: CAP
    • Manufacturer: CAP

    THIS IS NOT AFTER MARKET No Modification or tune needed - 100% plug and play Enjoy smoother idle, better throttle response and more efficient fuel atomization by replacing your old and tired injectors. OHM Tested for electrical shorts Disassembled and externally cleaned Checked for any major cosmetic damage Internally cleaned via numerous u... [read more]

  • Spectre Performance Cold Air Intake 9900 Kit with Red filter for 1999-2007 GM Truck

    • UPC: 089601990002
    • Color: Red
    • Brand: Spectre Performance
    • Manufacturer: Spectre

    Spectre air intake systems are designed to get the most horsepower and torque from your vehicle while they protect your engine from harmful debris. This air intake comes with a red Spectre reusable low restriction air filter, high quality polished aluminum tubing and a black powder coated heat shield (where applicable) to help prevent engine air fr... [read more]

  • JDMSPEED New 10.5MM Performance Spark Plug Wires Set Chevy GMC 1999-2006 LS1 Vortec 4.8L 5.3L 6.0L

    • UPC: 713803813943
    • Color: red
    • Brand: JDMSPEED
    • Manufacturer: JDMSPEED

    THIS IS A LITTLE LONGER THAN ORIGINAL WIRES. Manufacturer: JDMSPEED 100% New Construction 10.5mm Spiral Wound Design UltraLow Resistance KEVLAR Core RFI Suppression Ultra High Strength/High Temp. Silicone Boots and Sleeve Ready for Install Straight out of the box Fit 2004 Buick Rainer 5.3L 2002-2004 Cadillac Escalade 6.0L 1999-2006 Chevy C,K 1500 S... [read more]

  • Michigan Motorsports LS1 Rocker Arms with Trunion Kit Installed - FITS LS2 LS6 LQ4 LQ9 LY5 LY6 LM7 4.8 5.3 5.7 6.0 Bolts Not Included

    • Brand: Michigan Motorsports
    • Manufacturer: Michigan Motorsports

    Replacing your rockers with a true roller bearing setup is highly recommended whether you have a stock LS motor or a highly modified LS motor The stock bearings have a tenancy to fail. These rocker arms are a must have for any aggressive heads and cam combo and are the same rockers we utilize on our 1,000 hp Turbo Motor. We utilize LS1 rocker arms ... [read more]

  • Melling M295 Replacement Oil Pump

    • UPC: 729295103448
    • Brand: Melling
    • Manufacturer: Melling

    OIL PUMP

  • Taylor Cable 79614 409 Spiro-Pro 10.4mm Ignition Wire Set Blue For Vehicles w/LS Truck Headers 11.75 in. 135 Deg. Plug Boot 409 Spiro-Pro 10.4mm Ignition Wire Set

    • UPC: 088197796142
    • Color: Blue
    • Brand: Taylor Cable
    • Manufacturer: Taylor Cable

    10.4mm high performance ignition wires available for street or race applications. 409 Ignition Wire provides continuous heat protection up to 600º F and 102,000 volts dielectric strength. A tightly woven heat treated fiberglass braid is applied over our 100% pure silicone 8mm ignition wire. A 3rd layer of silicone is extruded making it a 10.4mm di... [read more]

  • High Performance Upgrade GT45 T4 10pc Turbo Kit - Chevy Small Block SBC Engine

    • Brand: Auto Dynasty
    • Size: 10 Pieces Upgrade
    • Manufacturer: Auto Dynasty

    Seeking for pure power? This is what you need. This is a custom turbo kit designed for specific applications.Package Included:GT45 Turbo Charger Turbo Manifold Intercooler & Piping Kit Blow off Valve 38mm Turbo Wastegate Oil Feed Line 3" Air Filter Hardware, such as Gasket(s) and Bolt(s) Turbocharger Spec: Compressor: Trim: 69 A/R: .66 Inducer: 68.... [read more]

  • ACDelco 217-3028 GM Original Equipment Fuel Injector Kit with Bracket

    • UPC: 707773220658
    • Brand: ACDelco
    • Manufacturer: ACDelco

    An ACDelco GM Original Equipment Fuel Injector Kit comes with everything you need to service a fuel injector, and is a GM-recommended replacement for your vehicle’s original component. The fuel injector atomizes the fuel with the air entering the engine cylinder to form a combustible mixture. This fuel injector kit has been manufactured to fit yo... [read more]

  • Superchips 2545 Flashcal Caliberation Tool

    • UPC: 851672007060
    • Brand: Superchips
    • Manufacturer: Superchips

    As a driving enthusiast, you know that no two vehicles are alike. From custom wheels and rims to hard-pulling winches, the list of mods for your truck or Jeep is almost unending. While everything you add makes your ride one-of-a-kind, those upgrades are likely putting a serious strain on your 4x4's factory facilities. Keep your ride's calibrations ... [read more]

  • Superchips 3571 Flashcal F5 Tuner

    • UPC: 853118003971
    • Brand: Superchips
    • Manufacturer: Superchips

    The Flashcal is the most advanced, & yet the most easy to use, tool on the market for recalibrating the speedometer for JK Wrangler customers who have upgraded tires, gears or axles on their rigs. Flashcal provides a quick calibration solution to ensure the Jeep is dialed in properly. Now Flashcal owners can upgrade their unit to a Flashpaq online.... [read more]

  • Superchips 5845 Flashpaq F5 Pro Custom Tuning Handheld Vessel

    • UPC: 851672007015
    • Brand: Superchips
    • Manufacturer: Superchips

    As a driving enthusiast, you know that no two vehicles are alike. From custom wheels and rims to hard-pulling winches, the list of mods for your truck or Jeep is almost unending. While everything you add makes your ride one-of-a-kind, those upgrades are likely putting a serious strain on your 4x4's factory facilities. Keep your ride's calibrations ... [read more]

  • For GMT800 V8 Truck/SUV 4" Aluminum Air Intake System (Black Filter/Silver Pipe/Black Heat Shield)

    • Color: Silver Piping, Black Filter
    • Brand: Auto Dynasty
    • Manufacturer: Auto Dynasty

    A Cold Air Intake System relocates the filter outside of the engine compartment to deliver the coolest air inlet temperatures possible. Cooler air carries more oxygen, which translates into a more intense explosion in the combustion chamber to create more horsepower and torque. But that's only part of the power equation. Tuning the inlet pipe in le... [read more]

  • Universal High Performance Upgrade T70 12pc Turbo Kit (Silver Intercooler/Silver Pipping)

    • Color: Silver FMIC, Silver Pipping
    • Brand: Auto Dynasty
    • Size: 12 Pieces Upgrade
    • Manufacturer: Auto Dynasty

    Seeking for pure power? This is what you need. This is a custom turbo kit designed for specific applications.Package Included:T70 Turbo ChargerIntercooler & Piping Kit38mm Turbo WastegateBlow off ValveOil Catch TankOil Feed LineOil Return Drain LineTurbo Boost Controller3" Air FilterHardware, such as Gasket(s) and Bolt(s) Turbocharger Spec: Compres... [read more]

  • 03-07 LS Vortec Standalone Wire Harness Drive by wire 4L60E 4.8 5.3 6.0 Delphi Free UPGRADES. WE are the number 1 seller 4 LS HARNESS

    • UPC: 619206462736
    • Brand: High Performance Injectors
    • Manufacturer: High Performance Injectors

    IN STOCK for NEXT DAY PRIORITY SHIPPING 03-07 LS VORTEC STANDALONE WIRING HARNESS DRIVE BY WIRE W/4L60E 4.8 5.3 6.0 EV6 Comes with instructions. FREE ADAPTER Connectors TO CONVERT Harness TO EV6 Injectors IF NEEDED. No one else includes the connectors. Please email after your purchase if you need Ev6 connectors. If you forget we have to charge $12.... [read more]

  • 03-07 LS Vortec Standalone Wire Harness Drive by wire 4L80E 4.8 5.3 6.0 Delphi Free UPGRADES. WE are the number 1 seller 4 LS HARNESS

    • UPC: 619206462705
    • Brand: High Performance Injectors
    • Manufacturer: High Performance Injectors

    IN STOCK for NEXT DAY PRIORITY SHIPPING 03-07 LS VORTEC STANDALONE WIRING HARNESS DRIVE BY WIRE W/4L80E 4.8 5.3 6.0 EV6 This has the adapter 4L80E that plugs into the 4L60E harness and you will have to pin 2 wires to the blue retainer. Comes with instructions. FREE ADAPTER Connectors TO CONVERT Harness TO EV6 Injectors IF NEEDED. No one else includ... [read more]

  • GM Performance Parts 12499224 SPRING PKG,VLV

    • UPC: 191215042593
    • Brand: GM Performance Parts
    • Manufacturer: GM Performance

    GM PERFORMANCE PARTS 12499224 Valve Spring Package - LS1

  • K&N Cold Air Intake Kit with Washable Air Filter: 2005-2007 Chevy/GMC/Cadillac (Silverado 1500, Avalanche 1500, Suburban, Tahoe, Sierra 1500, Yukon, Escalade) V8, Black HDPE Tube, 57-3050

    • UPC: 024844110701
    • Brand: K&N
    • Manufacturer: K&N

  • Top 5 Performance Mods For 5.3 Silverado or Sierra

    Top 5 Performance Mods for Horsepower

    Best Spark Plugs for 5.3 Vortec - Top Products for Smooth Performance