There's room for a turbo, though I don't know if with that manifold it will fit exactly right. The turbo will most likely hit the block not the radiator. You might have to make a small tube/adapter to angle the turbo away from the block a bit. In fact an adapter would also help the manifold not crack, or so some say. There are several Focus with turbo and stock manifolds and they're doing fine.
A stock Focus manifold has done 300whp with boost and nitrous, so it's decent. For a low HP setup it's also good. Yeah, $75 is a bit expensive. My dad got one for $15 plus shipping off Ebay. If you can get a refund, go for it.
2000 Rio Red I4 Cougar
200whp & 210wtq at 9psi
254whp & 276wtq with NX 35shot
WRX TD04 Turbo, Cut Short Shifter, Strut Tower Bar, 17" ZN Wheels, Roush Springs, Starion Intercooler, NX 35 shot, HKS SS BOV, Full 3" exhaust,StreetFlight Chip
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