(97-05) Grand Prix/Regal/Impala/Monte Carlo 3.8L Exhaust Headers with Catless Mid-Pipe

COMPATIBLE: (3.6L - V6 SUPERCHARGED)

1997 - 2003 Pontiac Grand Prix

1997 - 2004 Buick Regal

2004 - 2005 Chevy Impala

2004 - 2005 Chevy Monte Carlo

Made of High-Quality T304 Stainless Steel Material TIG Welded CNC Machine Flange 6-2-1 High-Performance Racing Spec. Design O2 Sensor Insertion and Metal Gasket Included Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq. 

Material: Stainless Steel Surface: Mirror Polish Outlet Size: 3.00", Primary Tube Size: 1.50" Number of o2 Locations: 2 Head Flange Thickness: 7/16" Outlet Flange Thickness: 3/8"

The structural differences between exhaust headers and manifolds are the material and size. From the material, exhaust headers are made of lighter, thinner steel, while exhaust manifolds are made of thick iron. Exhaust headers are also longer than exhaust manifolds. When in use, exhaust manifolds create back pressure, which lowers performance. Because each cylinder of the engine is given its own tube, however, headers eliminate this problem; thus, allowing the gases to exit without the creation of back pressure. Therefore, exhaust headers are a BETTER choice than an exhaust manifold.