The Texas Speed 1-7/8" Long Tube Header and 3" Catted Y-Pipe Kit is a bolt-on exhaust upgrade for 1999 to 2013 Chevrolet Silverado 1500 trucks in both 2WD and 4WD. The headers use 1-7/8" OD mandrel-bent primaries, and the 3" catted Y-pipe is also mandrel bent, with everything TIG welded from 304 stainless steel for durability.
The Y-pipe is shaped to preserve ground clearance under the truck and is wideband ready, and the kit ships with adapters specific to 1999 to 2006 and 2007 to 2013 trucks so it bolts to either the factory exhaust or a Texas Speed exhaust. Accuseal clamps and hardware are included. Texas Speed designed the headers with spark plug wire clearance in mind and recommends its own plug wires. The kit does not fit other truck or SUV models outside the listed applications.
Specifications
- Fitment: 1999 to 2006 Silverado 1500 (2WD and 4WD) and 2007 to 2013 Silverado and Sierra 1500 (2WD and 4WD), per Texas Speed
- Primary tube diameter: 1-7/8" OD, mandrel bent
- Material: 304 stainless steel, TIG welded
- Y-pipe: 3" mandrel-bent catted Y-pipe, ground-clearance friendly design
- Wideband: Wideband O2 ready
- Connection: Bolt-on with OEM or TSP exhaust using the included year-specific adapters
- Clamps and hardware: Accuseal clamps and hardware included
- Spark plug wires: Optimized clearance, TSP wires recommended
Kit Includes
- Texas Speed 1-7/8" long tube headers, pair, 1999-2013 Silverado 1500 (TSP-9913SIL-HDR)
- Texas Speed 3" catted Y-pipe, 1999-2013 Silverado 1500 (TSP-9913SIL-YPIPE)
- 1999-2006 and 2007-2013 specific adapters
- Accuseal clamps and hardware
Note: Does not fit other truck or SUV models outside the listed applications.
Vehicle Applications
Texas Speed lists this kit for 1999 to 2006 Silverado 1500 and 2007 to 2013 Silverado and Sierra 1500, 2WD and 4WD.
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
- 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
Vehicle applications reflect the fitment published by Texas Speed & Performance for this part number. Confirm your engine and cylinder head configuration before ordering.
Race Use Only. This product is intended for competition use on vehicles that are never operated on public roads. It is not legal for sale or use on pollution-controlled motor vehicles, and it is not CARB exempt. Installing or using this part on a vehicle driven on public roads may violate the federal Clean Air Act and state emissions laws.
FAQ
What trucks does the Texas Speed Silverado header and Y-pipe kit fit?
Texas Speed lists the kit for 1999 to 2006 Chevrolet Silverado 1500 and 2007 to 2013 Silverado and Sierra 1500, in both 2WD and 4WD. It does not fit other truck or SUV models.
What is included in the Texas Speed 1999-2013 Silverado header kit?
The kit includes a pair of 1-7/8" 304 stainless long tube headers, a 3" catted Y-pipe, adapters specific to 1999 to 2006 and 2007 to 2013 trucks, and Accuseal clamps and hardware.
Will this kit bolt to the factory exhaust?
Yes. Texas Speed describes the kit as bolt-on with either the OEM exhaust or a TSP exhaust, using the included year-specific adapters at the rear of the Y-pipe.
Does the Y-pipe have a wideband O2 bung?
Texas Speed lists the system as wideband ready, so provision is made for a wideband oxygen sensor for tuning and monitoring air-fuel ratio.
Do I need different spark plug wires with these headers?
Texas Speed designed the headers with optimized spark plug wire clearance and recommends TSP spark plug wires for the best fit, though the page does not state that they are required.
Is this header and catted Y-pipe kit street legal?
No. Despite the catted Y-pipe, this Texas Speed long tube header kit is sold for competition use only. It is not CARB exempt and is not legal for use on pollution-controlled vehicles driven on public roads.

