You would have to use custom made headers. The headers sold by clifford for example are long tube headers and what you want are short headers. You want to keep the exhaust gasses as hot and quick moving as possible to stir up the turbine. Long tube headers slow down the gasses and lower their temperature. So if you are going to turbocharge the inline six either go with short custom headers or go with the stock exhaust manifold. If it's a street car with less than 10 psi of boost then the stock manifold works fine.
