I was on the stillen website and I saw a race pipe for the 3.5 Altima, does anybody know if this will fit the 2K2 Maxima?

I dont think it will. On the Altima the manifold nearest the firewall has a 90 degree bend to it pointing the manifild towards the front of the car. If you look at the race pipe you will see the nasty 180 bend.

doesn't the altima have duals.. meaning different exhaust system?