K1500 1988-2006 4WD TRUCK 1 3/4" LONGTUBE HEADERS LS SWAP

Speed Engineering headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our headers are mandrel bent, tig welded, and feature a stainless steel construction. All of our headers have been dyno proven. We stand behind our 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, 3" Collector, Gains over 25+ rwhp, LS V8 Engines Only, 4.8L, 5.3L, 6.0L 6.2L LS Engines, CNC Machined Flanges, Polished Stainless Steel, Standard Graphite Manifold Gaskets

Vehicle Applications:

1989-1998 K1500 4WD (1/2 ton) OBS

1999-2006 Chevrolet Truck & SUV (2wd & 4wd)
1999-2006 GMC Truck & SUV (2wd & 4wd)
2002-2006 Cadillac Truck & SUV (2wd & 4wd)
2002-2006 Chevrolet Avalanche (2wd & 4wd)

NOTE: WILL NOT FIT ON 2WD OBS APPLICATIONS!

Note: If using a larger 4L80E transmission the bellhousing ears may need to be trimmed for proper clearance.

(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.