Seguler 2002-2005 4.2L Chevrolet Trailblazer Exhaust Manifold Catalytic Converter

-Fitment:
2004-2005 buick rainier
2002-2007 chevrolet trailblazer,
2002-2005 gmc envoy,
2002-2005 gmc envoy xl
2004-2005 gmc envoy xuv,
2004-2005 isuzu ascender
2002-2004 oldsmobile bravada
-Package includes:
Necessary Hardware Shown in the Picture Above
-The three-way catalytic converter
1.The current three-way catalyst, is generally a multicomponent material, containing the precious metals rhodium, platinum and (to a lesser extent) palladium, ceria (CeO2), γ-alumina (Al2O3), and other metal oxides.
2.It typically consists of a ceramic monolith of cordierite (2Mg.2Al2O3. 5SiO2) with strong porous walls enclosing an array of parallel channels.
3.A typical monolith has 64 channel openings per cm2 (400 per in2), This design allows a high rate of flow of exhaust gases Cordierite is used because it can withstand the high temperatures in the exhaust, and the high rate of thermal expansion encountered when the engine first starts.
4.Typically,the exhaust gas temperature can reach several hundred degrees in less than a minute. Metallic monoliths are also used, particularly For small converters.
5.The catalytic converter, in a metal canister, is placed in the exhaust system of the vehicle. As the exhaust gases pass through it, they flow through the channels in the ceramic monolith, where they encounter the particles of alumina impregnated with the metal catalysts.