ok guys, i had this manifold and i spend 1OO extra to make it strong! I opened it up and i made the plate between the runners stronger, I put a 5 mm plate instead of the useless original 1.5mm. That bloody 1.5mm cost me a fortune when i had the car on the dyno, I had loads of problems, I had it welded around 5 times.
But thanks to my patience I made the manifold the best and U wont have ever anymore problems! whoever buy this will be so happy trust me, also when i fixed with a bigger plate i had the car on the dyno and no more leaking! I will offer my services to anywone who wants to fit this manifold to their car!