Speed-Engineering
Speed Engineering 1-3/4" Long Tube Headers for 1999-2006 Silverado Sierra & Suv 25-1012
- PART NUMBER:
- 25-1012
- MPN:
- 25-1012
- Availability:
- Ships from Manufacturer
- Shipping:
- Free Over $98 In U.S. 48
- Type:
- Headers
- Vehicle Fitment:
- 1999-2006 Silverado Sierra & Suv
- Engine Fitment:
- 4.8L, 5.3L, 6.0L
- Material:
- 304 Stainless Steel
- Finish:
- Natural
- Primary Tube Diameter (in.):
- 1-3/4
- Collector Diameter (in.):
- 3
- Port Style:
- Round
- Bolts Included:
- No
- Gaskets Included:
- Yes
- O2 Bungs:
- Yes
- O2 Extensions Included:
- No
- RESTRICTION:
- Will Not Ship To California
Description
Speed Engineering 1-3/4" Long Tube Headers for 1999-2006 Silverado Sierra & Suv 25-1012
Speed Engineering headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Speed Engineering's headers are mandrel bent, tig welded, and feature natural stainless steel construction. All of Speed Engineering's headers have been dyno proven.
Features include:
- Mandrel Bent Tubing
- Merge Spikes
- Race Version with "NO" Air & EGR Fittings
- Full 1 3/4" Primaries
- 3" Collector
- Gains over 25+ rwhp
- V8 Engines Only
- 4.8L, 5.3L, 6.0L Engines
- CNC Machined Flanges
- 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. The 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.