The Texas Speed 103mm Drive-By-Wire Throttle Body is CNC milled from billet aluminum and finished in black anodize for Gen IV LS engines with a 58x reluctor wheel. Its 103mm inlet flows more air than factory and most aftermarket LS throttle bodies, which Texas Speed targets at high-horsepower boosted and naturally aspirated builds while retaining smooth part-throttle control for street manners. It is not compatible with Gen III 24x engines.
This kit pairs the throttle body with a swappable inlet flange in the style selected at ordering: a standard 115mm OD mounting flange, a Vanjen flange or a V-band flange, each black anodized. Texas Speed designs the throttle body in CAD and machines it on a 5-axis CNC. Because of the larger 103mm blade, an aftermarket intake manifold is required; it is not a direct bolt-on to the OEM intake, and engine calibration is required after installation.
Specifications
- Type: Drive-by-wire (DBW) electric throttle body
- Inlet/bore size: 103mm
- Material: CNC-milled billet aluminum, 5-axis machined
- Finish: Black anodized with raw machined accents
- Flange options: Standard 115mm OD mounting flange, Vanjen flange or V-band flange, black anodized, selected at ordering
- Engine compatibility: Gen IV LS engines with 58x reluctor wheels only; not compatible with Gen III 24x engines
- Intake manifold: Requires an aftermarket intake to accept the 103mm blade; not a direct bolt-on to the OEM intake
- Tuning: Engine calibration required after installation
- Intended use: High-horsepower boosted and naturally aspirated LS builds
Kit Includes
- Texas Speed 103mm drive-by-wire throttle body, black anodized (TSP-DBW103-TB-BLK)
- Swappable inlet flange adapter, black anodized: standard 115mm OD, Vanjen or V-band (selected at ordering)
Ordering Options
Select the Flange Type when ordering: Standard Mounting Flange, 115mm OD (TSP-TBADAPT-BLK), Vanjen Flange (TSP-TBADAPT-VANJEN-BLK) or V-Band Flange (TSP-TBADAPT-VBAND-BLK). All three are black anodized to match the throttle body.
Note: This throttle body is only compatible with Gen IV LS engines using a 58x reluctor wheel. It will not work with Gen III 24x engines.
Note: The 103mm blade requires an aftermarket intake manifold. This throttle body is not a direct bolt-on for the OEM intake manifold, and engine calibration is required after installation.
Vehicle Applications
Texas Speed limits this throttle body to Gen IV LS engines with a 58x reluctor wheel. The vehicle list below has been narrowed accordingly; confirm your engine is 58x before ordering.
Chevrolet Camaro
- 2010 Chevrolet Camaro
- 2011 Chevrolet Camaro
- 2012 Chevrolet Camaro
- 2013 Chevrolet Camaro
- 2014 Chevrolet Camaro
- 2015 Chevrolet Camaro
Chevrolet Corvette
- 2007 Chevrolet Corvette
- 2008 Chevrolet Corvette
- 2009 Chevrolet Corvette
- 2010 Chevrolet Corvette
- 2011 Chevrolet Corvette
- 2012 Chevrolet Corvette
- 2013 Chevrolet Corvette
Cadillac CTS-V
- 2007 Cadillac CTS-V
- 2008 Cadillac CTS-V
- 2009 Cadillac CTS-V
- 2010 Cadillac CTS-V
- 2011 Cadillac CTS-V
- 2012 Cadillac CTS-V
- 2013 Cadillac CTS-V
- 2014 Cadillac CTS-V
- 2015 Cadillac CTS-V
Cadillac Escalade
- 2008 Cadillac Escalade
- 2009 Cadillac Escalade
- 2010 Cadillac Escalade
- 2011 Cadillac Escalade
- 2012 Cadillac Escalade
- 2013 Cadillac Escalade
- 2014 Cadillac Escalade
Pontiac G8
- 2008 Pontiac G8
- 2009 Pontiac G8
GMC Sierra 1500
- 2007 GMC Sierra 1500
- 2008 GMC Sierra 1500
- 2009 GMC Sierra 1500
- 2010 GMC Sierra 1500
- 2011 GMC Sierra 1500
- 2012 GMC Sierra 1500
- 2013 GMC Sierra 1500
GMC Sierra 2500
- 2007 GMC Sierra 2500
- 2009 GMC Sierra 2500
- 2010 GMC Sierra 2500
- 2011 GMC Sierra 2500
- 2012 GMC Sierra 2500
- 2013 GMC Sierra 2500
- 2014 GMC Sierra 2500
GMC Sierra 3500
- 2009 GMC Sierra 3500
- 2010 GMC Sierra 3500
- 2011 GMC Sierra 3500
- 2012 GMC Sierra 3500
- 2013 GMC Sierra 3500
- 2014 GMC Sierra 3500
Chevrolet Silverado 1500
- 2007 Chevrolet Silverado 1500
- 2008 Chevrolet Silverado 1500
- 2009 Chevrolet Silverado 1500
- 2010 Chevrolet Silverado 1500
- 2011 Chevrolet Silverado 1500
- 2012 Chevrolet Silverado 1500
- 2013 Chevrolet Silverado 1500
Chevrolet Silverado 2500
- 2007 Chevrolet Silverado 2500
- 2008 Chevrolet Silverado 2500
- 2009 Chevrolet Silverado 2500
- 2010 Chevrolet Silverado 2500
- 2011 Chevrolet Silverado 2500
- 2012 Chevrolet Silverado 2500
- 2013 Chevrolet Silverado 2500
- 2014 Chevrolet Silverado 2500
Chevrolet Silverado 3500
- 2007 Chevrolet Silverado 3500
- 2008 Chevrolet Silverado 3500
- 2009 Chevrolet Silverado 3500
- 2010 Chevrolet Silverado 3500
- 2011 Chevrolet Silverado 3500
- 2012 Chevrolet Silverado 3500
- 2013 Chevrolet Silverado 3500
- 2014 Chevrolet Silverado 3500
Chevrolet SS
- 2014 Chevrolet SS
- 2015 Chevrolet SS
- 2016 Chevrolet SS
- 2017 Chevrolet SS
Chevrolet Suburban
- 2007 Chevrolet Suburban
- 2008 Chevrolet Suburban
- 2009 Chevrolet Suburban
- 2010 Chevrolet Suburban
- 2011 Chevrolet Suburban
- 2012 Chevrolet Suburban
- 2013 Chevrolet Suburban
- 2014 Chevrolet Suburban
Chevrolet Tahoe
- 2007 Chevrolet Tahoe
- 2008 Chevrolet Tahoe
- 2009 Chevrolet Tahoe
- 2010 Chevrolet Tahoe
- 2011 Chevrolet Tahoe
- 2012 Chevrolet Tahoe
- 2013 Chevrolet Tahoe
- 2014 Chevrolet Tahoe
Chevrolet Trailblazer SS
- 2007 Chevrolet Trailblazer SS
- 2008 Chevrolet Trailblazer SS
- 2009 Chevrolet Trailblazer SS
GMC Yukon
- 2007 GMC Yukon
- 2008 GMC Yukon
- 2009 GMC Yukon
- 2010 GMC Yukon
- 2011 GMC Yukon
- 2012 GMC Yukon
- 2013 GMC Yukon
- 2014 GMC Yukon
Vehicle applications reflect the fitment published by Texas Speed & Performance for this part number. Confirm your engine and cylinder head configuration before ordering.
FAQ
What engines does the Texas Speed 103mm drive-by-wire throttle body work with?
It is compatible only with Gen IV LS engines that use a 58x reluctor wheel, such as the LS3, L99, L92, LSA and 2007 and newer Gen IV truck engines. Texas Speed states it will not work with Gen III 24x engines like the LS1, LS6 and early LS2.
Will the 103mm throttle body bolt onto a stock LS intake manifold?
No. The 103mm blade is larger than a factory intake opening, so an aftermarket intake manifold such as the Texas Speed Titan is required. Texas Speed states it is not a direct bolt-on for the OEM intake.
Is tuning required after installing this throttle body?
Yes. Texas Speed states that engine calibration is required after installation so the ECM is matched to the larger 103mm bore and the drive-by-wire motor.
What flange options are available for the black 103mm throttle body?
The swappable flange is offered as a standard 115mm OD mounting flange, a Vanjen flange or a V-band flange, each black anodized. Select the style that matches the intake tube or coupler planned for the build.
What is the difference between the black and silver Texas Speed 103mm throttle bodies?
Both are the same CNC billet 103mm drive-by-wire throttle body for Gen IV 58x LS engines. This black kit includes a black anodized throttle body and one black flange adapter selected at ordering; the silver TSP-DBW103-KIT is raw machined with the flange adapters offered as add-ons.
How does a 103mm throttle body affect street drivability?
Texas Speed machines the throttle body for improved airflow control at lower rpm, so it is designed to keep smooth part-throttle response and street manners while supporting stronger top-end airflow for high-horsepower builds.
