LS3 Performance Parts / Accessories

2008-2009 Pontiac G8 (GXP) ● 2013-2017 Chevy SS

One of the most ubiquitous motors of the entire GM LS line. The LS3 was used in both cars and trucks and is the staple of many resto-mods and LS-swaps. The LS3 can be bored, stroked, boosted and make 1000HP when setup correctly. GM put the LS3 in Corvettes, G8s and Chevy SS models and many other... Read More

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25 products
  • LSX Supercharger Intercooler Lid-XtremeCFM-
    LSX Supercharger Intercooler Lid-XtremeCFM-Black Anodized-XCFM-10149
    Sale
    LSX Supercharger Intercooler Lid
    XtremeCFM
    From $1,074.95
    From $1,074.95 $1,345.00

    1 total reviews

  • Nick Williams 103mm Adjustable Rotating Throttle Body Adapter-XtremeCFM-103mm Straight (Single Gasket)-XCFM-10404
    Nick Williams 103mm Adjustable Rotating Throttle Body Adapter-XtremeCFM-110mm to 103mm Taper (Double Gasket)-XCFM-10166
    Nick Williams 103mm Adjustable Rotating Throttle Body Adapter
    XtremeCFM
    $79.95
    $79.95

    1 total reviews

  • Billet Hose Menders Black Anodized-XtremeCFM-0.75" ID Hose Mender-XCFM-10000
    Billet Hose Menders Black Anodized-XtremeCFM-1.00" ID Hose Mender-XCFM-10001
    Billet Hose Menders Black Anodized
    XtremeCFM
    From $9.95
    From $9.95

    1 total reviews

  • Billet Y-Block - Barbed Hose Ends-XtremeCFM-0.5" to Dual 0.5" Billet-Y Barbed Hose Ends-XCFM-10414
    Billet Y-Block - Barbed Hose Ends-XtremeCFM-1.0" to Dual 0.75" Billet-Y Barbed Hose Ends-XCFM-10088
    Billet Y-Block - Barbed Hose Ends
    XtremeCFM
    From $45.95
    From $45.95
  • Pierburg CWA400 Universal Pump Install Kit-XtremeCFM-XCFM-10457
    Pierburg CWA400 Universal Pump Install Kit-XtremeCFM-XCFM-10457
    Pierburg CWA400 Universal Pump Install Kit
    XtremeCFM
    $79.95
    $79.95
  • Vibrant 0.75" 3/4" 12AN Hose By The Foot
    Vibrant 0.75" 3/4" 12AN Hose
    Vibrant Silicone Hose 3/4" - 12AN - 0.750" - 2045
    Vibrant Performance
    From $9.95
    From $9.95 $156.99
  • Nick Williams Performance LSX 103mm Throttle Body and Hardware.
    Nick Williams Performance LSX 103mm Throttle Body and Hardware Connector View.
    Nick Williams LSX 103mm Throttle Body (NA & Boosted)
    Nick Williams
    From $689.95
    From $689.95
  • Billet LSX / LTX Idler Pulley - 45 mm / 1.772 inches Thick-XtremeCFM-
    Billet LSX / LTX Idler Pulley - 45 mm / 1.772 inches Thick-XtremeCFM-75mm Idler Pulley-XCFM-10375
    Billet LSX / LTX Idler Pulley - 45 mm / 1.772 inches Thick
    XtremeCFM
    From $99.95
    From $99.95
  • Synergy Motorsports LSA Supercharger Adapter Plate
    Synergy Motorsports LSA Supercharger Adapter Plate close up view.
    ZR1/LSX Lid LSA Billet Adapter/Spacer Plate Kit
    XtremeCFM
    $349.95
    $349.95
  • 1" 16AN Vibrant Silicone Hose
    1" 16AN Vibrant Silicone Hose By The Foot
    Vibrant Silicone Hose 1" - 16AN - 2047
    Vibrant Performance
    From $10.95
    From $10.95 $196.99
  • Synergy's Chevy SS Engine Bay Expansion/Water Tank Installed in the Engine Bay.
    Closeup of the Synergy's Chevy SS Engine Bay Expansion/Water Tank Installed.
    Chevy SS Engine Bay Expansion/Water Tank Kit
    XtremeCFM
    $524.95
    $524.95

    1 total reviews

  • Cold Air Intake Couplers & Reducers-XtremeCFM-4.5" x 4.25" x 2.5" Intake Coupler Reducer-XCFM-10074
    Cold Air Intake Couplers & Reducers-XtremeCFM-4.5" x 4.0" x 2.5" Intake Coupler Reducer-XCFM-10073
    Cold Air Intake Couplers & Reducers
    XtremeCFM
    From $19.95
    From $19.95
  • GM Quick Connect Female To -12AN Male-XtremeCFM-XCFM-10441
    GM Quick Connect Female To -12AN Male-XtremeCFM-XCFM-10441
    GM Quick Connect Female To -12AN Male
    XtremeCFM
    $21.95
    $21.95
  • 10mm (9.89mm) Bundy Fitting Quick Connect to 3/8" Barb-XtremeCFM-90 Degree 9.89mm QC / 3/8" Barb-XCFM-10186
    10mm (9.89mm) Bundy Fitting Quick Connect to 3/8" Barb-XtremeCFM-0 Degree 9.89mm QC / 3/8" Barb-XCFM-10187
    10mm (9.89mm) Bundy Fitting Quick Connect to 3/8" Barb
    XtremeCFM
    $7.95
    $7.95
  • C6 Corvette Center Trunk Tank-XtremeCFM-XCFM-10452
    C6 Corvette Center Trunk Tank-XtremeCFM-XCFM-10452
    Sale
    C6 Corvette Center Trunk Water/Ice Tank
    XtremeCFM
    $424.95
    $424.95 $474.95
  • Fuel Pump Pre-Filter-XtremeCFM-6AN-XCFM-10135
    Fuel Pump Pre-Filter-XtremeCFM-8AN-XCFM-10136
    Sale
    Fuel Pump Pre-Filter
    XtremeCFM
    From $19.95
    From $19.95 $24.95
  • 6-Bolt LSX Cylinder Heads-XtremeCFM-XCFM-10460
    6-Bolt LSX Cylinder Heads-XtremeCFM-XCFM-10460
    6-Bolt LSX Cylinder Heads
    XtremeCFM
    $2,915.00
    $2,915.00
  • 9.65mm Bundy Fitting Quick Connect to 3/8" Barb-XtremeCFM-90 Degree 9.65mm QC / 3/8" Barb-XCFM-10190
    9.65mm Bundy Fitting Quick Connect to 3/8" Barb-XtremeCFM-45 Degree 9.65mm QC / 3/8" Barb-XCFM-10189
    9.65mm Bundy Fitting Quick Connect to 3/8" Barb
    XtremeCFM
    $7.95
    $7.95
  • C6 Corvette Fender Catch Can Breather System - Tank Only-XtremeCFM-XCFM-10185
    C6 Corvette Fender Catch Can Breather System - Tank Only
    XtremeCFM
    $384.95
    $384.95
  • Vibrant 10AN 0.625 5/8" Heater Hose
    Vibrant 10AN 0.625 5/8" Heater Hose By The Foot
    Vibrant Silicone Hose 5/8" - 10AN - 0.625" - 2044
    Vibrant Performance
    From $8.95
    From $8.95 $146.99
  • 61mm Fuel Pump Mount/Bracket With Rubber Collar-XtremeCFM-XCFM-10213
    61mm Fuel Pump Mount/Bracket With Rubber Collar-XtremeCFM-XCFM-10213
    Sale
    61mm Fuel Pump Mount/Bracket With Rubber Collar
    XtremeCFM
    $13.95
    $13.95 $19.95
  • -16 AN Weld On 1" Tube Holder-XtremeCFM-XCFM-10328
    -16 AN Weld On 1" Tube Holder-XtremeCFM-XCFM-10328
    -16 AN Weld On 1" Tube Holder
    XtremeCFM
    $14.95
    $14.95
  • Injector Dynamics ID1300-Injector Dynamics-XCFM-10504
    Injector Dynamics ID1300
    Injector Dynamics
    $1,873.20
    $1,873.20
  • Injector Dynamics ID1050x-XtremeCFM-XCFM-10503
    Injector Dynamics ID1050x
    Injector Dynamics
    $1,075.20
    $1,075.20
  • GM In-Line Fuel "T" Splitter Block-XtremeCFM-XCFM-10214
    GM In-Line Fuel "T" Splitter Block-XtremeCFM-XCFM-10214
    GM In-Line Fuel "T" Splitter Block
    XtremeCFM
    $34.95
    $34.95