The Texas Speed LS High Output Ignition Coil in the D581 style is a direct replacement for the factory coil used on 1999 to 2007 GM LS engines, the rectangular coil found on LS1 and LS6 cars and Gen III 4.8L, 5.3L and 6.0L trucks before GM moved to the square LS2/LS3 style coil. It bolts into the factory coil bracket and uses the factory connector.
Texas Speed positions the coil as a high output replacement for aging LS coils, claims up to 15 percent higher output than a stock replacement, and reports the coils are tested by its own engineering team. This listing is for one coil; an LS V8 uses eight. Texas Speed's finder lists Gen III LS 5.7L and 6.0L and Gen IV LS 6.0L and 6.2L engine families for this coil within the 1999 to 2007 range. Part number TSP-1008.
Specifications
- Application: 1999 to 2007 GM LS engines per Texas Speed
- Coil style: D581 (rectangular LS1/LS6/truck style)
- Engine families listed by Texas Speed: Gen III LS 5.7L/6.0L, Gen IV LS 6.0L/6.2L
- Installation: Bolt-in design using factory connectors
- Output claim per Texas Speed: Up to 15 percent higher output versus stock replacement coils
- Quantity: One coil
- Part number: TSP-1008
Vehicle Applications
Engine families listed by Texas Speed: Gen III LS 5.7L and 6.0L, Gen IV LS 6.0L and 6.2L, 1999 to 2007 D581-style coil applications. Vehicle list limited to 1999 through 2007.
Chevrolet Camaro
- 1999 Chevrolet Camaro
- 2000 Chevrolet Camaro
- 2001 Chevrolet Camaro
- 2002 Chevrolet Camaro
Chevrolet Corvette
- 1999 Chevrolet Corvette
- 2000 Chevrolet Corvette
- 2001 Chevrolet Corvette
- 2002 Chevrolet Corvette
- 2003 Chevrolet Corvette
- 2004 Chevrolet Corvette
- 2005 Chevrolet Corvette
- 2006 Chevrolet Corvette
- 2007 Chevrolet Corvette
Chevrolet Silverado 1500
- 1999 Chevrolet Silverado 1500
- 2000 Chevrolet Silverado 1500
- 2001 Chevrolet Silverado 1500
- 2002 Chevrolet Silverado 1500
- 2003 Chevrolet Silverado 1500
- 2004 Chevrolet Silverado 1500
- 2005 Chevrolet Silverado 1500
- 2006 Chevrolet Silverado 1500
Vehicle applications reflect the fitment published by Texas Speed & Performance for this part number. Confirm your engine and cylinder head configuration before ordering.
FAQ
Which LS engines use the Texas Speed D581-style ignition coil?
Texas Speed lists the D581-style coil for 1999 to 2007 GM LS engines, the rectangular coil used on the LS1 and LS6 in the Camaro, Firebird and Corvette and on Gen III truck engines, before GM switched to the square LS2/LS3 coil.
Will this coil fit a 2005 and newer LS2 or LS3 engine?
Not in most cases. Texas Speed sells a separate square-style LS2/LS3/LS4/LS7/LS9 coil for the 2005 to 2013 engines that use that design. Match the coil to the style already on the engine.
Is the Texas Speed D581 coil a bolt-in replacement?
Yes. The coil bolts into the factory coil bracket and plugs into the factory connector, so it replaces a stock coil without any wiring modifications.
How many coils are included?
This listing is for one Texas Speed D581-style ignition coil. An LS V8 uses eight coils, so order eight for a full replacement set or one to replace a single failed coil.
What does the Texas Speed coil offer over a stock replacement?
Texas Speed claims up to 15 percent higher output than a stock replacement coil and states the coils are tested by its engineering team for reliability. It is sold as a high output direct replacement.
