Speed Engineering 1-7/8" Longtube Headers & Y-Pipe Full Kit for 2007–2013 Chevrolet Silverado and GMC Sierra 1500 4.8L, 5.3L, 6.0L, 6.2L applications.
This complete bolt-on system replaces the restrictive factory exhaust manifolds and mid-pipes with free-flowing stainless longtubes and a 3" off-road Y-pipe that connects directly to the existing cat-back location. Designed for improved exhaust flow, increased horsepower, and a deeper, more aggressive exhaust tone while maintaining long-term durability.
⚠️ Note: Rear (downstream) O₂ sensors are not used. A check-engine light for catalyst efficiency will appear and must be disabled via PCM tuning.
Kit Includes
- (1) Pair of stainless steel 1-7/8" Longtube Headers
- (1) 3" Off-Road Y-Pipe / Connection Pipe
- (1) Set of Zinc-Coated Header Bolts (or stainless ARP bolts if selected)
- (2) MLS Exhaust Gaskets
Plug Wires and Sleeves can be added to the kit if selected.
Speed Engineering Silverado & Sierra longtube headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our Silverado & Sierra longtube headers are mandrel bent, tig welded, and feature natural stainless steel construction. All of our Silverado & Sierra longtube headers have been dyno proven. We stand behind our Silverado & Sierra longtube headers in saying you will not find a better fitting, quality built, budget header for your vehicle.
Features include:
- Mandrel Bent Tubing
- Merge Spikes
- Full 1 3/4" Primaries
- 3" Collector
- Longtube Header Design
- Silverado / Sierra / SUV LS Headers
- Gains over 25+ rwhp
- V8 Engines Only
- 4.8L, 5.3L, 6.0L, 6.2L Engines
- CNC Machined Flanges
- Natural Stainless Steel
- Standard Graphite Manifold Gaskets
Vehicle Applications:
2007 Chevrolet Silverado 1500 (2WD/4WD)
2008 Chevrolet Silverado 1500 (2WD/4WD)
2009 Chevrolet Silverado 1500 (2WD/4WD)
2010 Chevrolet Silverado 1500 (2WD/4WD)
2011 Chevrolet Silverado 1500 (2WD/4WD)
2012 Chevrolet Silverado 1500 (2WD/4WD)
2013 Chevrolet Silverado 1500 (2WD/4WD)
2007 GMC Sierra 1500 (2WD/4WD)
2008 GMC Sierra 1500 (2WD/4WD)
2009 GMC Sierra 1500 (2WD/4WD)
2010 GMC Sierra 1500 (2WD/4WD)
2011 GMC Sierra 1500 (2WD/4WD)
2012 GMC Sierra 1500 (2WD/4WD)
2013 GMC Sierra 1500 (2WD/4WD)
2007 Chevrolet Tahoe (2WD/4WD)
2008 Chevrolet Tahoe (2WD/4WD)
2009 Chevrolet Tahoe (2WD/4WD)
2010 Chevrolet Tahoe (2WD/4WD)
2011 Chevrolet Tahoe (2WD/4WD)
2012 Chevrolet Tahoe (2WD/4WD)
2013 Chevrolet Tahoe (2WD/4WD)
2014 Chevrolet Tahoe (2WD/4WD)
2007 GMC Yukon (2WD/4WD)
2008 GMC Yukon (2WD/4WD)
2009 GMC Yukon (2WD/4WD)
2010 GMC Yukon (2WD/4WD)
2011 GMC Yukon (2WD/4WD)
2012 GMC Yukon (2WD/4WD)
2013 GMC Yukon (2WD/4WD)
2014 GMC Yukon (2WD/4WD)
2007 Cadillac Escalade (2WD/4WD)
2008 Cadillac Escalade (2WD/4WD)
2009 Cadillac Escalade (2WD/4WD)
2010 Cadillac Escalade (2WD/4WD)
2011 Cadillac Escalade (2WD/4WD)
2012 Cadillac Escalade (2WD/4WD)
2013 Cadillac Escalade (2WD/4WD)
2014 Cadillac Escalade (2WD/4WD)
2007 Cadillac EXT (2WD/4WD)
2008 Cadillac EXT (2WD/4WD)
2009 Cadillac EXT (2WD/4WD)
2010 Cadillac EXT (2WD/4WD)
2011 Cadillac EXT (2WD/4WD)
2012 Cadillac EXT (2WD/4WD)
2013 Cadillac EXT (2WD/4WD)
2014 Cadillac EXT (2WD/4WD)
2007 Chevrolet Avalanche (2WD/4WD)
2008 Chevrolet Avalanche (2WD/4WD)
2009 Chevrolet Avalanche (2WD/4WD)
2010 Chevrolet Avalanche (2WD/4WD)
2011 Chevrolet Avalanche (2WD/4WD)
2012 Chevrolet Avalanche (2WD/4WD)
2013 Chevrolet Avalanche (2WD/4WD)
2014 Chevrolet Avalanche (2WD/4WD)
Note: Y-Pipe "WILL WORK" on trucks & suv's with 6 Speed Automatic transmissions.
Note: Depending on factory exhaust type. Some cutting/welding may be required for Y pipe install.
(Warning) This is a RACE ONLY product manufactured and sold for installation on vehicles to be used solely for competition purposes. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. If you install this part on your vehicle and use the vehicle on a public road or highway, you will violate the Clean Air Act 203(a)(3), 42 U.S.C, 7522(a)(3) and may be subject to personal civil or criminal liability.