These 304 stainless steel long tube headers are for the 2008+ Pontiac G8 GT. This new system includes Long Tube Headers (1 7/8"), High Flow X-pipe (catted or off road), and optional axle back exhaust. Kooks builds all of their products to the highest standard, and these are possibly the best headers for the Pontiac G8. They feature 1 7/8" primaries, and 3" high velocity merge collectors with O2 Bugs welded in. 1 7/8" is the most popular size for the G8 because they support a stock application with no real difference in performance vs. 1 3/4", but also allow room to grow.
The G8 Kooks X-pipe is a high flow 3" x 2.5" full length design. It can be ordered with high flow catalytic converters or off-road style without cats. These X-pipes are the best design on the market and feature flex joints to reduce any harshness or drone from the G8's MDS system. Both are made of 304 stainless steel and engineered to the same high standard as Kooks other products.
Tig welded with all 304 (aircraft grade) mandrel bent stainless steel construction
Integrated venturi merge spike for better savaging and less collector turbulence
Primaries blended into the flange for better flow
Leak Proof Ball Flange collector for trouble free ownership.
Each primary tube is one continuous piece of tubing. Some competitors weld several pieces of tubing to create one primary, which is a weaker design.
- 1 7/8" x 3" Stainless Steel Long Tube Headers
- Must be used with Kooks X-Pipe
- O2 extensions, gaskets, and all installation hardware included
- LS7 D-Port flange can be added for an additional charge
Application: 2008-2009 Pontiac G8 GT/GXP