Here are some pics I took of installing headers on my friends Grand Prix GTP it was quite a learning experience.
This is the front manifold compared to the aftermarket header.
Stock exhaust, not to pretty to the eyes.
Engine with headers removed. Wasn't too bad of a job.
Headers installed.
Cutout and racing cat that will be installed, gotta love it, it will be emissions legal still.
More pics of the headers finally torqued fully.
And even a video of it running with just the headers on, with the cutout open it sounds close to the same.
http://www.oldweakandpathetic.com/me...l/MOV03962.avi
We have a set of nice tips and flowmaster muffler that will be used, but we are fabricating our own custom 2 1/2" Y pipe setup.