what modifications can be made to the exhaust manifold to perform better?
1. can it be ported? should the "+" dividing the runners be removed? what else can i do to it?
2. which turbo bolts on straight to the 4efte's exhaust manifold?... ct9 duh but i want an upgrade ...ct20 from hilux? Matrix
or could i just add an extension like a T fitting to the exhaust manifold to use a different turbo like a td04l and be able to use an external wastegate?
1. can it be ported? should the "+" dividing the runners be removed? what else can i do to it?
2. which turbo bolts on straight to the 4efte's exhaust manifold?... ct9 duh but i want an upgrade ...ct20 from hilux? Matrix
or could i just add an extension like a T fitting to the exhaust manifold to use a different turbo like a td04l and be able to use an external wastegate?
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