These Speed Engineering exhaust manifold flanges cover the driver and passenger sides on Chevrolet Silverado and GMC Sierra trucks with the 4.8L, 5.3L, or 6.0L engine. They are laser cut from 3/8" thick mild steel for a 2.5" pipe diameter with a 3-bolt pattern, which makes them a fabrication piece for building custom exhaust connections at the manifold.
Features:
- Driver and Passenger Side Flanges
- 2.5" Pipe Diameter: 3-bolt pattern
- Laser Cut
- 3/8" Thick Mild Steel
- For Exhaust Fabrication
- 4.8L, 5.3L and 6.0L Engines
Vehicle Applications:
Chevrolet Silverado 1500
- 1999 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2000 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2001 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2002 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2003 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2004 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2005 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2006 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2007 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2008 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2009 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2010 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2011 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2012 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
- 2013 Chevrolet Silverado 1500 — 4.8L/5.3L/6.0L
GMC Sierra 1500
- 1999 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2000 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2001 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2002 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2003 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2004 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2005 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2006 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2007 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2008 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2009 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2010 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2011 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2012 GMC Sierra 1500 — 4.8L/5.3L/6.0L
- 2013 GMC Sierra 1500 — 4.8L/5.3L/6.0L
FAQ
What pipe size do these flanges accept?
They are made for 2.5" pipe diameter with a 3-bolt pattern.
What material are the flanges made from?
They are laser cut from 3/8" thick mild steel.
Are both sides included?
Yes. The listing covers driver and passenger side flanges.
Which engines are these flanges for?
Speed Engineering lists them for Silverado and Sierra trucks with the 4.8L, 5.3L, and 6.0L engines, which covers the 1999–2013 Chevrolet Silverado 1500 and GMC Sierra 1500.
