Joe the figure is more like 10% than 15% from what cosworth have said.. And the cost is 1200-1300 USD shipped which brings it close to 2k AUD thats the price of a custom modified manifold.. It is just like all the other custom manifolds i havent seen any real flow data just people talking about it. Just because it is cosworth dosent mean it is the best.. have a look at the magnus manifold, preety much exactly the same design yet i hear alot of people talk badly about that design??

i like to mix it up and try new things, for better or worse.. i still havent decided which way im going yet...

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I'm a jockey kunts...