I'm pretty sure the motor coming out of my project car is a s4. The one going in is s5. Can I use the s4 upper and lower manifolds on the s5 motor?

 

just use all the s5 manifolds and swap out the omp's and your good, s5 engine on s4 electronics, just like me.

 

I don't have the s5 manifolds.

 

NA or T2, I have the S5 NA + TB manifolds.

 

t2

 

The only difference between the s4 and s5 t2 manifolds is the UIM on the s5 raises up higher over the fuel rail. I'm actually using s4 t2 manifolds with a s5 t2 modded tb with no problems. Get the S5 T2 TB TPS. It's much better than the S4 TPS.

 

So the s4 LIM will bolt up and seal right with the s5 engine? Which gasket should I buy?

 

go with a s5 lower, and a FD upper like mine, just need to make an adapter

 

I thought S4 lower nad S6 upper were the best combo.

 

how is it better if he is using the stock ecu and can only use the narrow band of that tps?

you need to not give bad advice, just because it is s5 doesnt mean it is better

 

Can someone just answer my question. I really don't want to spend the extra money for different manifolds.