My girl has a 96 Firebird 3.8 She wants to get the newly designed Flomaster American Thunder Catback, but it's the two cat stlye. What I'm wondering is, can I put Headers, Y-Pipe and cats from a 98+ V6 on her 96 so the flows match up? Just wondering. Thanks,

 

You don't even have to do that. The 98+ catbacks WILL fit on her 96 with the exception of replacing the hangers.

 

Short is right. If I may add, your girl will LOVE the American Thunder system. It sounds SWEET...