is there any difference between s4 and s5 turbo manifolds? or are they interchangable? can some identify this manifold for me, need to know asap



S4 or S5

 

S5

 

is there a difference between s4 and s5? will they interchange

 

the manifold has to be matched to the turbo.

S4 collects before the turbo and has an actuator/door setup that blocks one of the entries of the turbo

S5 is twin scroll and stays fully divided as it enters the turbocharger scrolls.

 

ok good to know. thank you for the help

 

S5 is what you have.it almost looks like a T4 flange but it isn't.
ths S4 is different and has a "corner" cut off the Turbo flange,so to speak...so it isn't totally square-ish like that of the s5 Turbo flange mounting area.

 

you also need the oil line all the way to the front iron if you mix the turbos between series.