got a free matrix header, wondering if any one esle was using one....and if maybe i should invest in a better one?

 

I also got one for free a few years ago. Good gawd was that thing puny looking. The ports were very small (the biggest let down) and so was the ID of the piping. Decent if you need to throw something in (because you threw away your stock exhaust manifold) but if you're looking for more performance & gains over your stock setup, dump those and get some better headers.

 

Get a better one. Matrix is like for ford focus ZX3's.