The collector is in original parts and can be installed directly to the original flexible, and fits perfectly and does not need any modification to be installed.
It 'also the connection for the lambda probe in the usual series of position.
Check the shape of the head flange (circular ducts) if it is the same form of your collector.
Suzuki Samurai exhaust manifolds with Suzuki Vitara 1600 16v engine on 4-2-1 type SJ410-413 with final connection with sleeve and simple clamp to connect it.
Alfa Romeo 75 Twin Spark 2000 stainless steel exhaust manifold with aspirated electronic injection 4-2-1 as a replacement, complete with everything and reaches up to the central unit as shown in the photo.
Exhaust manifolds Fiat Panda 100 HP 1400 16v made with 4-2-1 stainless steel pipes also installable on Fiat Grande Punto 1400 16v - Alfa Romeo Mito 1400 16v Fiat Idea made to favor low revs.