hey guys had a bad day i got in my car today to go spirited driving and i let it warm up and when i got on it my boost gauge said was was bearly making vacuum break let alone much boost and i was thinking it might just be the gauge but i let rx-7 addict (scott) dive it and he right away thought it wasnt making any boost but the weird thing is it dosnt smoke or any thing so any wase im going to replace the turbo and i was woundering if the s5 turbo would fit on a s4 motor/car...thanks scott

 

it will fit, but it takes a minor bit of working to get it to fit. Just use some s4 parts and some s5 parts.

and try searching!

 

It will fit, but you need the S5 manifold as well. Its a good upgrade, specifically the wastegate design.