TU5JP4S / TU5JP4 Difference?

[York1366]

whats the difference in the two engines I know the TU5JP4S has a bit more BHP but are all the bolt on's the same i.e injectors, exhaust manifold, coilpack etc

thanks
Matt

[KamRacing]

intake manifold design is different. Not sure but I think the cam profile is possibly too.

[welshpug]

different pistons and valve springs

[Sophia_Bush]

JP4S has better cams, inlet manifold, valve springs and pistons as per above plus a different map on the ecu