Is this for FC or not? Do you think itīs pricey?

http://cgi.ebay.com/ebaymotors/ws/eB...category=33742

 

It looks like the FC, but be careful buying cheap manifolds....I've heard horror stories of the welds breaking.

 

That is the HKS cast iron manifold for the FC. No worries on that one cracking, in case of nuclear war the world will be populated by those and cockroaches. Not worlds be design, but it works, retail was about $250 last time I checked, but I have heard Iron prices had been on the rise so it may be more now.

 

they raised the price recently to around $350 retail

 

Is this the best CAST manifold fo FC? How much more power would I gain if Iīd get headers?

 

It is the most common/affordible cast manifold for the 13BT. If by headers you mean a SS turbo manifold, power increase is arguable, but cost for one that will not crack also goes way up.

 

Can't do headers with a Turbo.......but like stated above, the SS manifold is nice.

 

They make stainless steel tubular headers for the TII, I know I've seen them... crack prone though. That looks nice, with some room for porting/polishing.