So having trouble finding a reasonably priced used X exhaust manifold for my RA swap. I want to stay cast and retain all the OEM heat shielding, plus I'd really like to keep a stockish appearance and keep the wife "happy"...

I know of the MAP SS manifold, but from what dyno charts I have found, it delays turbo spool about 400 RPM from the OEM piece and I din't want to decrease spool at all. I know 400 isn;t much, but I am purposely under building this car to achieve the best spool possible. Any suggestions?

 

Just get a stock X manifold. I'll have one for sale in the next couple weeks cause I'm swapping out my stock manifold for the MAP cast investment manifold

 

For sure, drop me a PM once it;s off and you know it;s not cracked. Apparently, that's why I can't find one and was hoping for an aftermarket option

 

MAP's is really the only alternative I'm aware of. It is a really nice piece though. Maybe with some ceramic coating and porting of the stock turbo you could see closer to stock spool.

 

Porting slows spool FYI

 

Really? I've been reading on this alot the last few nights, and it seemed the consensus was that porting helped, and that the shorter the distance from head to turbine the better.

 

porting helps on the top end not the lower anyways.