Dan's phase 2 1.8xs toy build

[Niall]

Cant comment on the 6 exhaust mani. I never got round to fitting mine. Biggest let down is the 1.8 ECU. The sagem ecu just loves to shit its self for fun and doesnt adapt well at all to modifications. As a design, the gti manifold is very very capable. you should never ever have to replace it for more flow unless of course you need a custom one for a turbo. The best thing you can do is get it on aftermarket management once the engine is built. The sagem will destroy that engine by overfuelling massively if you try and use it and would be a shame to loose that hard work.
Omex is probably the best ecu that people use on the 306s but it comes at a premium. About £600 new and then another £70 for the loom connector and then the cost of building the loom (can do that your self if your confident with a soldering iron) and mapping.