As far as the manifold, we will see what happens. I bought the manifold in a kit off a forum member. I have not heard any bad reports about these items as yet. Its all well and good to bag out a product if you have had one fail on you personally. How many of you can say you have had one of these manifolds fail on you??
6boost items are a good manifold and have a good reputation,but because the GCG ones are not as known doesnt mean they are any better or worse than the other.
Stainless are known to crack more than other types of material,but i personally know of many cars that have branded stainless manifolds and have not had a problem.
Time will tell as to how all products perform.
On another note i have sprayed the CAS in silver engine enamel which looks alot better than stock. Also plumbed up all the heater lines. Maybe....just maybe it will be in the car this weekend