All 6Boost manifolds are constructed by hand in Australia with their own design of merge collector. The design means that non of the runners cross each other and in turn directs all of the exhaust gasses to the turbo entry.

Not only do these manifolds flow well, sound great but they are commonly known as the tanks of the exhaust manifold world.
 
The manifolds will need to have the wastegate provisions welded in place which enables you to have the most optimal clearance in the bay depending which wastegate you have chosen to use.
 
This model is to be used with T4 turbo flanges.

They come with a lifetime warranty as long as the car has been mapped correctly and no heat wrap has been used.