I am confused on how to handle it. I have a 96 hx and the cat is on the manifold and i dont no how to get my 99si engine exhaust to work?

 

You're going to have to get the Si B-pipe modified to fit the HX exhaust setup or you're going to have to get a K-Teller adjustable test pipe to bridge the gap. Go to K-Teller's website and check it out, as it's the better of the two options.

Why you're putting an exhaust on an HX motor is a mystery to me

 

I put a 99si b16 engine in it and it wont hook up to the stock exhaust so i am going to buy new so it will work and i dont no how to do it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by orangeracer &raquo;</TD></TR><TR><TD CLASS="quote">I put a 99si b16 engine in it and it wont hook up to the stock exhaust so i am going to buy new so it will work and i dont no how to do it? </TD></TR></TABLE>

It would have helped if that little piece of information was in your initial post, kid.

Regardless, if you get an Si exhaust and you have an Si motor with an Si header, you're either going to need an Si catalytic converter or that adjustable test-pipe I was telling you about. Either one will work, the latter will be a shitload cheaper and easier to find. After you have the parts, it's all just nuts and bolts.