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Well I got a header from 5Zigen, and I must say I am very impressed! Great looking, lightweight, excellent construction. 4-2-1 Design
This particular header I got was a prototype, so it has some wear on it due to engine dyno testing.
The car seems to run alot smoother with the header installed, the motor revs faster, and VTEC is mainly where I can feel a power difference. I think it is about 12lbs lighter than stock. I'll try and get the dyno info posted up soon.
Here are some pics: