Lots of cheap manifolds are coming with braces now:

http://www.driftworks.com/catalog/im...20manifold.jpg


I would assume they are inadequate but you should be able to make something extremely easily.


If you have the option make sure you have that downpipe brace that connects to the transmission and a good flex pipe in your exhaust and you shouldn't have any issues with cracking your manifold/downpipe.

I've got a legit manifold but a megan elbow. I have that downpipe/transmission brace and it reallly makes a difference. My old KA-T had a legit manifold and downpipe and that downpipe cracked at least 3 times - I didn't have that transmission/downpipe brace.