Thanks for the info Manxman. The 2.8(3L) had a new head fitted about 20,000 kms ago so hopefully it will be ok. I should only need low boost as I have sufficient low power now. I am wanting just a bit more top end so I can sit closer to the 100k speed limit. Being a 3L the manifold should fit ok. Can I use the boost compensator from the 2.4LTE pump? or even the whole pump?