ive got a supersprint manifold on my 2litre and that feals so much better for the engine, people say stick with standard as the supersprint is very expensive! but if you got money to burn do it! sounds a bit raspy but definately alot more torque, it gave be a good increase and i certainly noticed it and so did my passenger
Decat is essential along with stainless system, make sure you stay with the original airbox and get a panel filter, then get an smt6 from Andy GDI, better than a chip as it is mapped to your engine and mods! then get cams headwork etc then another remap which is cheaper since you have the smt6
