The Texas Speed 103mm Drive-By-Wire Throttle Body in silver is CNC milled from billet aluminum and left in a raw machined finish for Gen IV LS engines with a 58x reluctor wheel. The 103mm inlet is sized for high-horsepower boosted and naturally aspirated LS builds, and Texas Speed machines the bore for controlled airflow at lower rpm so part-throttle drivability and street manners are retained. It is not compatible with Gen III 24x engines.
The throttle body is designed in CAD and machined on a 5-axis CNC. Texas Speed offers swappable inlet flange adapters as optional add-ons: a standard 115mm OD mounting flange, a Vanjen flange or a V-band flange. Because of the larger 103mm blade, an aftermarket intake manifold is required; the throttle body 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: Silver, raw machined
- Optional flange adapters: Standard 115mm OD mounting flange, Vanjen flange or V-band flange (add-on 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, silver raw machined (TSP-DBW103TB)
- Flange adapter: standard 115mm OD, Vanjen or V-band (optional add-on, selected at ordering)
Ordering Options
Texas Speed offers an optional Flange Type add-on for this throttle body: the TSP 103mm drive-by-wire throttle body adapter in standard 115mm OD mounting flange, Vanjen flange or V-band style. Select one if the build needs a specific inlet flange; the throttle body can also be ordered without an adapter.
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 silver 103mm throttle body fit?
It is compatible only with Gen IV LS engines using 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 such as the LS1, LS6 and early LS2.
Does the 103mm throttle body fit a factory LS intake manifold?
No. The 103mm blade needs an aftermarket intake manifold opening, such as the Texas Speed Titan. Texas Speed states the throttle body is not a direct bolt-on for the OEM intake manifold.
Is a tune required for the Texas Speed 103mm DBW throttle body?
Yes. Texas Speed states that engine calibration is required after installation to match the ECM to the larger throttle bore and drive-by-wire motor.
Are the flange adapters included with the silver throttle body?
No. On the silver TSP-DBW103-KIT the standard 115mm OD, Vanjen and V-band flange adapters are optional add-ons selected at ordering. The black TSP-DBW103BLK-KIT includes one black anodized flange adapter.
What is the difference between the silver and black Texas Speed 103mm throttle bodies?
Both are the same CNC billet aluminum 103mm drive-by-wire throttle body for Gen IV 58x LS engines. The silver version has a raw machined finish with the flange adapter as an optional add-on, while the black version is black anodized and includes one matching flange adapter.
