Performance Auto Parts for LS Swaps, Muscle Cars & Modern Builds

Shop thousands of in-stock performance parts from trusted brands—engine upgrades, suspension, exhaust, fuel systems, and more. Fast shipping and real-world support from fellow car enthusiasts.

Speed Engineering LS Swap Conversion Oil Pan (LS1, LS2, LS3, LS6) 26-1039

$264.99
26-1039
All Speed Engineering
We are proud to announce the release of our LS swap oil pan. Designed to fit all LS based engines. Most aftermarket oil pans...

Speed Engineering Exhaust & Header Heat Wrap (INCLUDES ZIP TIES) 25-1125

$34.99
25-1125
All Heat Shields Speed Engineering
Exhaust & Header Heat Wrap (Includes Zip Ties) Features include: 50' Length 2" Width 1/16" Thickness 5 Qty Zip Ties Included Heat Rated for...

Speed Engineering 3" Exhaust Clamp 25-1090

$7.49
25-1090
.Clamps .ExhaustClampsHangers All Clamps Speed Engineering
Speed Engineering 3" exhaust clamp used on all of our exhaust products. This clamp is sold individually.

Speed Engineering 3" V-Band Clamp & Flanges (LARGE 8MM X 1.25 BOLT) 25-1094

$24.99
25-1094
.Clamps .ExhaustClampsHangers All Clamps Speed Engineering
3" V-Band Clamp & Flanges (Stainless Steel) Features include: 304 Stainless Steel Larger (8mm x 1.25 T-Bolt) 1 Qty V-Band Clamp 2 Qty V-Band...
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Speed Engineering Quick View

Speed Engineering "PAIR" Mustang Square 6 Pin O2 Extensions (2015-2017) 31-1008 ETA 4/30/25

$39.99
31-1008
All Speed Engineering Wiring Harnesses
ETA 4/30/25 Oxygen sensor extensions allow for easy relocation of oxygen sensors. This is perfect for the installation of headers which require the oxygen...

Speed Engineering LS Swap Longtube Headers 2" K1500 4WD TRUCK 1988-1998 25-1077

$379.99
25-1077
.HeadersManifolds All Headers & Manifolds Speed Engineering
NOT AVAILABLE TO CALIFORNIA Speed Engineering LS Swap Longtube headers are made out of 304 stainless steel and offer great quality, performance, and affordability....

Speed Engineering LT4 Cadillac CTS-V "Manifold" X-Pipe Kit 2016-2019 (6.2L ENGINE) 25-1064

$359.99
25-1064
.HPipeYpipeXPipeMergePipes All Speed Engineering X Pipes
NOT AVAILABLE TO CALIFORNIA Speed Engineering X-Pipes are made out of 304 stainless steel and offer great quality, performance, and affordability. Our X-Pipes are...

Speed Engineering Cadillac CTS-V 2" Longtube Headers 2016-2019 (LT4 ENGINE) 25-1061

$499.99
25-1061
.HeadersManifolds All Headers & Manifolds Speed Engineering
Speed Engineering Cadillac CTS-V longtube headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our CTS V longtube...

Speed Engineering Silverado & Sierra True Dual Exhaust System 1999-2006 (CREW & EXTRA CAB) "AXLE EXIT" 25-1006 ETA 4/30/25

$629.99
25-1006-6
.ExhaustSystemsKits All Header Back Speed Engineering
ETA 4/30/25 Speed Engineering true dual exhaust is made out of 304 stainless steel and offers great quality, performance, and affordability. Our exhaust is...

Speed Engineering Silverado & Sierra True Dual Exhaust System 1999-2006 (CREW & EXTRA CAB) "REAR EXIT" 25-1006 ETA 4/30/25

$699.99
25-1006-5
.ExhaustSystemsKits All Header Back Speed Engineering
ETA 4/30/25 Speed Engineering true dual exhaust is made out of 304 stainless steel and offers great quality, performance, and affordability. Our exhaust is...

Speed Engineering Shorty Headers Truck & SUV EGR (1999-2006) 6.0L 25-1018

$299.99
25-1018
.HeadersManifolds All Headers & Manifolds Speed Engineering
NOT AVAILABLE TO CALIFORNIASpeed Engineering headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our headers are mandrel...

Speed Engineering Stainless Straight Exhaust Tubing (22" LONG, 3" DIA) PAIR 25-1003

$59.99
25-1003
All Speed Engineering
Stainless Straight Exhaust Tubing| (22" Long, 3" Dia) Pair Features include: Natural Stainless Steel 3" Diameter Sold in Pairs

Speed Engineering Silverado & Sierra True Dual Exhaust System 2007-2019 (CREW & EXTRA CAB) "AXLE EXIT" 25-1006 ETA 4/30/25

$614.99
25-1006-3
.ExhaustSystemsKits All Header Back Speed Engineering
ETA 4/30/25 Speed Engineering true dual exhaust is made out of 304 stainless steel and offers great quality, performance, and affordability. Our exhaust is...

Speed Engineering "PAIR" LT1 Camaro/LS1 Corvette 24" O2 Extension (FLAT CONNECTOR) 31-1002

$39.99
31-1002
All Speed Engineering Wiring Harnesses
Oxygen sensor extensions allow for easy relocation of oxygen sensors. This is perfect for the installation of headers which require the oxygen sensor be...

Speed Engineering Gen 5 Camaro 2" Longtube Headers 2010-2015 (LS3 L99 ENGINES) 25-1078

$379.99
25-1078
.HeadersManifolds All Headers & Manifolds Speed Engineering
Speed Engineering Gen 5 Camaro longtube headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our Camaro longtube...

Speed Engineering LT1 LT4 Camaro "Manifold" X-Pipe Kit 2016+ (6.2L ENGINE) 25-1064

$349.99
25-1064
.HPipeYpipeXPipeMergePipes All Speed Engineering X Pipes
NOT AVAILABLE TO CALIFORNIASpeed Engineering X-Pipes are made out of 304 stainless steel and offer great quality, performance, and affordability. Our X-Pipes are mandrel...
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Speed Engineering Off-Road Y-Pipe 1988-1998 K1500 4WD Truck 25-1014 ETA 5/30/25 Quick View

Speed Engineering Off-Road Y-Pipe 1988-1998 K1500 4WD Truck 25-1014 ETA 5/30/25

$159.99
25-1014
.HPipeYpipeXPipeMergePipes All Speed Engineering Y Pipes
NOT AVAILABLE TO CALIFORNIA Speed Engineering Y-Pipes are made out of 304 stainless steel and offer great quality, performance, and affordability. Our Y-Pipes are...

Speed Engineering OBS Silverado Sierra C1500 X-Pipe Kit 1988-1998 (LS Swap) 2WD 25-1138

$299.99
25-1138
.HPipeYpipeXPipeMergePipes All Speed Engineering
NOT AVAILABLE TO CALIFORNIA Speed Engineering True Dual X-Pipe System is made out of 304 stainless steel and offers great quality, performance, and affordability....

FULL KIT Speed Engineering Gen 4 Camaro & Firebird 1 3/4" Longtube Headers 1998-2002 (LS1 ENGINES) 25-1010

$524.95
25-1010KIT
.HeadersManifolds All Headers & Manifolds Speed Engineering
NOT AVAILABLE TO CALIFORNIA This kit includes the parts required and recommended parts to install longtube headers in your 98-02 Fbody and connect them...

FULL KIT Speed Engineering Silverado & Sierra 1 7/8" Longtube Headers 2007-2013 25-1009

$524.96
25-1009KIT
.HeadersManifolds All Headers & Manifolds Speed Engineering
NOT AVAILABLE TO CALIFORNIAThis kit includes the parts required and recommended parts to install longtube headers in your 07-13 GMT900 truck and connect them...

Speed Engineering Universal 2 1/2" Exhaust Builder Kit (304 Stainless) 25-1032

$189.99
25-1032
All Speed Engineering
Speed Engineering Builder Kits are made out of 304 stainless steel and offer great quality, performance, and affordability. Our Builder Kits are mandrel bent,...

Speed Engineering Universal 3" Exhaust Builder Kit "Fabricator Edition" (304 Stainless) 25-1151

$0.00
25-1151
All Speed Engineering
Speed Engineering Builder Kits are made out of 304 stainless steel and offer great quality, performance, and affordability. Our Builder Kits are mandrel bent,...

Speed Engineering Universal 2.5" Exhaust Builder Kit "Deluxe" (304 Stainless) LS Engine Swap 25-1111

$289.99
25-1111
All Speed Engineering
Speed Engineering Builder Kits are made out of 304 stainless steel and offer great quality, performance, and affordability. Our Builder Kits are mandrel bent,...

Speed Engineering LS Swap Exhaust Manifolds "Black" Camaro, Chevelle, Nova, C10, K10, OBS Truck 25-1124

$199.99
25-1124
.HeadersManifolds All Speed Engineering
NOT AVAILABLE TO CALIFORNIASpeed Engineering LS Swap Exhaust manifolds are made out of cast iron and offer great quality, and affordability. We stand behind...

Speed Engineering LS Turbo Headers "Truck Series" (Forward Facing Upward) 25-1036

$279.99
25-1036
.HeadersManifolds All Speed Engineering
NOT AVAILABLE TO CALIFORNIA Speed Engineering turbo headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our turbo...

Speed Engineering Universal LT 1 3/4" Turbo Headers (Forward Facing Upward) 25-1055

$289.99
25-1055
.HeadersManifolds All Speed Engineering
NOT AVAILABLE TO CALIFORNIA Speed Engineering turbo headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our headers...

Speed Engineering "PAIR" Silverado & Sierra 12" O2 Extensions (2019-2024 GM Truck & SUV) 31-1037

$39.99
31-1037
All Speed Engineering
Silverado & Sierra 12" O2 Extension (2016-2018 GM Truck & SUV) "SOLD IN PAIR" (Warning) This is a RACE ONLY product manufactured and sold for installation...

Speed Engineering LT Swap Camaro (1967-1969) & Nova (1968-1974) Longtube Headers (LT1 LT4) 25-1156

$349.99
25-1156
.HeadersManifolds All Speed Engineering
NOT AVAILABLE TO CALIFORNIA Looking to swap a newer LT series engine into a 1967-1969 Camaro, or 1968-1974 Nova.. Speed Engineering LT swap longtube...

Speed Engineering Spark Plug Wires Car, Truck, & SUV 12" Length "BLACK" 26-1067

$69.99
26-1067
.Sparkplugwires All Speed Engineering
Speed Engineering 45 degree angled spark plug wires. We offer our own line of quality spark plug wires produced here in the U.S. These...

Speed Engineering C10 LS Swap Kit 1973-1987 (LS1 LS2 LS3 LS6 LSA) SE-C10-KIT-73-87

$199.99
SE-C10-KIT-73-87
.HeadersManifolds All Speed Engineering
Speed Engineering C10 LS Swap Kit 1973-1987 with all of the options on headers, oil pans, and many more products that we offer!Features Available:...

Speed Engineering Titanium T3 Turbocharger Blanket (Heat Shield) 26-1076

$24.99
26-1076
.TurbochargersSuperchargers All Speed Engineering Turbo Blankets
Titanium T3 Turbocharger Blanket (Heat Shield) Features include: 7" Height 7" Width 3.5" Thickness T3 Turbochargers (Fits our Turbo Kits) Heat Rated for 1400°F...

Speed Engineering 2.5" T-Bolt Hose Clamp (STAINLESS STEEL) 32-1021

$2.49
32-1021
.Clamps All Clamps Speed Engineering
2.5" T-Bolt Hose Clamp Features include: Stainless Steel High Strength for Supercharger/Turbocharged applications Sold Individually

Speed Engineering 3" T-Bolt Hose Clamp (STAINLESS STEEL) 32-1026

$2.49
32-1026
.Clamps All Clamps Speed Engineering
3" T-Bolt Hose Clamp Features include: Stainless Steel High Strength for Supercharger/Turbocharged applications Sold Individually

Speed Engineering 4" T-Bolt Hose Clamp (STAINLESS STEEL) 32-1031

$3.99
32-1031
.Clamps All Clamps Speed Engineering
4" T-Bolt Hose Clamp Features include: Stainless Steel High Strength for Supercharger/Turbocharged applications Sold Individually

Speed Engineering 2.5" Lap Joint Exhaust Band Clamp 25-1122

$7.79
25-1122
.Clamps .ExhaustClampsHangers All Clamps Speed Engineering
Speed Engineering 2.5" lap joint exhaust clamp. This clamp is an upgrade to our standard exhaust band clamps included in our exhaust kits. This...

Speed Engineering 2.5" V-Band Clamp (LARGE 8MM X 1.25 BOLT) 25-1091

$13.99
25-1091
.Clamps .ExhaustClampsHangers All Clamps Speed Engineering
2.5" V-Band Clamp (Stainless Steel) Features include: 304 Stainless Steel Larger (8mm x 1.25 T-Bolt) 1 Qty V-Band Clamp
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