Speed Engineering 1-7/8" Longtube Headers & Y-Pipe Full Kit for 2014–2018 Chevrolet Silverado and GMC Sierra 1500 5.3L 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 significant horsepower gains, aggressive exhaust tone, and long-lasting 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
- (2) O₂ Extension Harnesses (If required. Please select the truck's model year)
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 7/8 " Primaries
- 3" Collector
- Longtube Header Design
- Silverado / Sierra / SUV LT Headers
- Gains over 25+ rwhp
- V8 Engines Only
- 5.3L, 6.2L Engines
- CNC Machined Flanges
- Natural Stainless Steel
- Standard Graphite Manifold Gaskets
Vehicle Applications:
2014 Chevrolet Silverado 1500
2015 Chevrolet Silverado 1500
2016 Chevrolet Silverado 1500
2017 Chevrolet Silverado 1500
2018 Chevrolet Silverado 1500
2019 Chevrolet Silverado 1500 (Classic Body)
2014 GMC Sierra 1500
2015 GMC Sierra 1500
2016 GMC Sierra 1500
2017 GMC Sierra 1500
2018 GMC Sierra 1500
2019 GMC Sierra 1500 (Classic Body)
2015 Cadillac Escalade
2016 Cadillac Escalade
2017 Cadillac Escalade
2018 Cadillac Escalade
2019 Cadillac Escalade
2020 Cadillac Escalade
2015 Chevrolet Tahoe
2016 Chevrolet Tahoe
2017 Chevrolet Tahoe
2018 Chevrolet Tahoe
2019 Chevrolet Tahoe
2020 Chevrolet Tahoe
2015 GMC Yukon
2015 GMC Yukon Denali
2016 GMC Yukon
2016 GMC Yukon Denali
2017 GMC Yukon
2017 GMC Yukon Denali
2018 GMC Yukon
2018 GMC Yukon Denali
2019 GMC Yukon
2019 GMC Yukon Denali
2020 GMC Yukon
2020 GMC Yukon Denali
Note: Y-Pipe will work on trucks & suv's with 6 Speed & 8 Speed Automatic transmissions.
Note: Exhaust products only work on earlier 2019 (classic) models and not the newer body style 2019 GM vehicles.
Note: GM 2500/3500 models with 6.0L applications will require our 07-13 GM truck exhaust products.
(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.