when ordering 3 factory 4 wheel drive 4 exhaust systems can also be fabricated using ... modification 11 header designed for 302w engines using the ar svo aluminum heads ... but can be matched to your particular exhaust port configuration 17 fits all cars ... directly to the 1986 and later factory exhaust headpipes 26 will not fit 1973 cars ... with 4 sidetubes 29 fits 4v heads only 30 one tube over frame right side 31 ... emission control devices attached to exhaust manifold on 1977 and later vehicles and ... .e intake manifold is part of the head exhaust manifold bolts to the bottom not to the ... and instruction sheet 46 cat-back exhaust system does not fit extended cabs 47 ... exceeding 21 in width 51 this cat-back exhaust system is supplied with an optional ... 52 steering shaft must be below the exhaust ports requires #10922 for mounting ...