Silverado & Sierra 1 3/4" Longtube Headers| 1999-2006
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
SKU: 25-1012
(In Stock)
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
- Race Version with "NO" Air & EGR Fittings
- Full 1 3/4" Primaries
- Longtube Header Design
- Silverado / Sierra / SUV LS Headers
- 3" Collector
- Gains over 25+ rwhp
- V8 Engines Only
- 4.8L, 5.3L, 6.0L Engines
- CNC Machined Flanges
- Natural Stainless Steel (Y-Pipe Natural Stainless Steel)
- Standard Graphite Manifold Gaskets
Vehicle Applications:
- 1999-2006 Chevrolet SIlverado Truck & Tahoe SUV (2wd & 4wd)
- 1999-2006 GMC Sierra Truck & Yukon SUV (2wd & 4wd)
- 2002-2006 Cadillac EXT Truck (2wd & 4wd)
- 2002-2006 Cadillac Escalade SUV (2wd & 4wd)
- 2002-2006 Chevrolet Avalanche (2wd & 4wd)
Note: If using a larger 4L80E transmission the bellhousing ears may need to be trimmed for proper clearance.
Note: Most 6.0 applications have a 2 into 1 exhaust system which our y pipe system will not work with. Double check your exhaust for confirmation of fitment with single exhaust. Our x pipe kit can work on the 2 into 1 exhaust systems, but require fabrication for connection.
Note: Earlier 2500's might have fitment issues due to chassis being designed from previous years. Earlier years have the upper control arms mounted on top of the chassis, which would cause fitment issues.
(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.
**All Speed Engineering products Cannot be Exchanged or Returned**Our History
For 23 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.