Pacemaker - Holden VN-VR Commodore 3.8 Litre Headers & Base Pipe (PH5109)NOTE: BASE PIPE INCLUDED Pacemaker Headers to suit Holden Commodore VN VP VR 3. 8 Litre Buick V6 Motor Manual and Automatic Headers with Y Branch TUNED design Important Notes Will fit variable ratio power steering Base pipe is 2 with 2 Outlet Base pipe will be marked PH5019B Product Specs Part #: PH 5019 P Steering: Yes Gasket: DSF 60 Air Con: Yes Primary Pipe: 1" (38mm) Oxy Sen: Yes Secondary Pipe: E. G. R: N A Outlet: 2" (57mm) Y Branch: Yes Fitting