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Back in December I bought a set of Doug Thorley headers for my 2004 Sport Trac. I took them to a custom exhaust shop for installation today, and there's a problem . . .
The stock exhaust manifold has provision for EGR on the driver's side, but the headers do not. Has anyone run into this problem before? Would installing an EGR bung in the exhaust pipe behind the header provide sufficient back pressure for the EGR to function?
The stock exhaust manifold has provision for EGR on the driver's side, but the headers do not. Has anyone run into this problem before? Would installing an EGR bung in the exhaust pipe behind the header provide sufficient back pressure for the EGR to function?