Factory Five Racing Mk4 Roadster Assembly Manual page 466

Bolt the pipe and gasket to the header or J-pipe flange with using the shorter ⅜" bolts and mechanical
locknuts.
Drill a 3 / " hole in the 2"x 2" outrigger tube directly above the middle hole in the mounting bracket.
16
You want this hole as high as you can get it while still being able to mount the rubber exhaust hanger.
About ½" down from the aluminum floor.
465
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