1:32 metal exhausts for aircraft models give large scale what it asks for: genuinely hollow stubs with thin walls, plainly visible from half a metre away. Exhaust manifolds are always tooled for one specific type and sub-variant. Matching a manifold to a sub-variant is easier from the other end: settle the airframe first in 1:32 aircraft model kits, then look up the stubs cut for it among the machined sets in metal exhausts for aircraft models, which run across the scales.